Olight
Page 1 of 2 12 LastLast
Results 1 to 30 of 58

Thread: Philips MPXL-DL50 on eBay for cheap

  1. #1
    Flashaholic
    Join Date
    Feb 2005
    Location
    Canberra, Australia
    Posts
    310

    Default Philips MPXL-DL50 on eBay for cheap

    (If you don't want to read an overview of the advantages of the DL50 skip to the bottom for the eBay seller and the price).

    The Philips DL50 is a ďpremiumĒ D2S bulb with longer life, better performance, and higher maximum wattage compared to standard D2S bulbs (Philips 85122, Osram, GE). To see how it compares to the GE bulb at 50W look at the pictures by Mr. Ted Bear in the barn burner thread. It puts out more lumens, has more throw, lights up a larger area, has a more uniform hotspot, and has a more neutral colour than the GE bulb (GE bulb has a slight pinkish tint). XeVision says it canít be used at 35W, so it can only be used as an upgrade for 50W systems such as the XeVision 50W, and it is the only bulb that can be driven at 75W as with the XeVision barn burner.

    In the barn burner thread mtbkndad said: ďOn another note there was more of a difference between the three configurations in the park then the pictures can show. The difference was pretty evenly stepped from a 50Xe/GE to 50Xe/DL50 to 75Xe/DL50. All three were quite bright so the difference is really between three different levels of enough light to see across that part of the park.Ē

    There is a comparison at http://nuconverter.de/spectraldatapage.html that says: ďComparison of a DL50 with an overpowered D2S from GE: The GE bulb has less blue spectral intensive lines than the DL50. The typical xenon look of the GE is lost and there's less light output as well. As a conclusion a 50W Xenon system requires a 50W bulb.Ē

    While everyone in the barn burner thread agrees that the DL50 is better than the GE bulb, most donít think that itís worth 3x the price of the GE bulb, and Iím inclined to agree. XeVision charges $85 for the GE bulb which puts the DL50 at around the $250 mark.

    On eBay the DL50 is available from the seller ďbeamer-onlineĒ here for only $99! Itís not exactly cheap, but itís only 17% more than the GE bulb, which is well worth it in my opinion. I emailed the seller and he said that he has hundreds of them and they are all new and unused. For 10 or more the price is only $85, or the same price as the GE bulb! So if someone wants to do a group buy for these we can all get the DL50s for the same price as the GE bulb! There is no point in running the group buy myself because I live in Australia.

    The seller also mentions a 70W ballast, but itís 80 Ė 260VAC so it's useless for portable spotlights, although it could be used for home lighting if anyone's interested.

  2. #2

    Default Re: Philips MPXL-DL50 on eBay for cheap

    if we could get enough people for this group buy I would be in for 1 bulb, having a spare is always good

  3. #3
    Flashaholic*
    Join Date
    Jun 2003
    Location
    Portland Oregon
    Posts
    2,407

    Default Re: Philips MPXL-DL50 on eBay for cheap

    I would love a spare



    I can not reply to private messages

    cpf locks up on me when I hit the reply button.

    I have not read the whole barn burner post
    but I knew a dl50 was involved

    I want a 75 watt ballast

  4. #4

    Default Re: Philips MPXL-DL50 on eBay for cheap

    QUOTE=RalphRussell XeVision in Blue

    Apparently, some DL50 bulbs are available on eBay. Dan, can you clarify a few things for us? Based on all that I have read and on our phone discussions, I believe the following to be true.



    1) You will NOT offer the DL50 with the XeRay 50w. Even though it works well, you don't want to deplete your limited supply at this time by offering it with the 50w. Yes, that is my preference.



    2) The DL50 will NOT work correctly in the XeRay 35w. It will not function long term with any 35 watt ballast. 45 watt is the minimum.



    3) The DL50 is REQUIRED for the XeRay 75w and will be included in the upgrade to 75w when it becomes available to those of us in the first group buy. Yes that is true. In the upgrade price to 75 watt I am including one for about $100 of the total upgrade price.



    If all of the above are true, the only reason any of us would want the eBay bulbs would be as an upgrade to the GE bulb in the 50w units. Could you please comment on this? Thanks, Ralph. Yes, I will also consider selling individual bulbs to those interested even though I don't really prefer to. I don't want to loose the buisness to e-bay. Don't forget customs, shipping cost, insurance etc in the total final cost through e-bay. It is probably closer to $95 to $100 for 10 units when this is all added in. If you really search the internet those bulbs sell for $250-$300.

    If someone else wants to manage a group buy I will consider offering a similar price including those extra costs. shipped from Ogden Utah. No e-bay, no risk, no customs, no etc.


    by the way guys, I am pretty sure a standard D2S (P32d) based bulb will not fit in the Polarion units. I believe their bulb has a custom base.
    Last edited by XeVision; 01-26-2006 at 08:56 AM.

  5. #5
    Flashaholic
    Join Date
    Sep 2005
    Location
    Bloomington, Minnesota
    Posts
    108

    Default Re: Philips MPXL-DL50 on eBay for cheap

    Thanks for the fast response Dan. I will wait. I'd much rather get an extra DL50 from you than an unknown eBay seller in Germany. Once those of us in the group buy get our 50w units, perhaps you could offer us an "mini" upgrade consisting of a DL50 at a price close to what this eBay seller is asking. Of course I'll want the "maxi" upgrade to 75w too!

  6. #6
    Flashaholic*
    Join Date
    Jun 2003
    Location
    Portland Oregon
    Posts
    2,407

    Default Re: Philips MPXL-DL50 on eBay for cheap

    I have a xenlight 25/50 watt ballast that I use with my dl50

    xenlight insisted that I use their 50 watt ballast with a dl50 bulb and that the dl50 would be fine at 25 watts.

    I have operated the dl50 at 25 watts with no problems at all. - so far any way.

    the ballast will even start the dl50 in 25 watt mode every time.
    90% of the time I run the dl50 at full power.

    I may have 30 hours run time on the bulb

    the xenlight balast operates at 4khz not 400hz like most ballasts.

    maybe 4khz is better for bulb life.
    Last edited by markdi; 01-26-2006 at 11:15 AM.

  7. #7

    Default Re: Philips MPXL-DL50 on eBay for cheap

    QUOTE=markdi XeVision in Blue

    I have a xenlight 25/50 watt ballast that I use with my dl50

    xenlight insisted that I use their 50 watt ballast with a dl50 bulb and that the dl50 would be fine at 25 watts. The bulb life will be shortened if you run mostly at 25 watt. The electrodes will erode more rapidly because of "cathode fall". Maybe you will get only 500 hours at 25 watts.

    I have operated the dl50 at 25 watts with no problems at all. - so far any way. You answered many of your own questions. With 30 hours on the bulb no problems will occur.

    the ballast will even start the dl50 in 25 watt mode every time.
    90% of the time I run the dl50 at full power.

    I may have 30 hours run time on the bulb

    the xenlight balast operates at 4khz not 400hz like most ballasts.

    maybe 4khz is better for bulb life. No, but they can probably get more reliable starting below 28 watts using 4Khz. Traditionally anything below 28 watts is bad for a standard D2S 35 watt bulb, more so for DL-50. Once your electrodes get a little shorter you wont be able to keep it lit at 25 watts.

    We tend to be purist's at XeVision, some things can be done but we want long life and happy customers.
    Last edited by XeVision; 01-26-2006 at 12:25 PM.

  8. #8
    *Flashaholic* LuxLuthor's Avatar
    Join Date
    Nov 2005
    Location
    CT
    Posts
    10,280

    Default Re: Philips MPXL-DL50 on eBay for cheap

    I'm appreciating XeVision's reputation and feedback a lot more every day !!!

    Also, the person who can't post with PM's, if you remove the QUOTE brackets, it should work. From time to time the quote function locks up the browser.

  9. #9
    Flashaholic
    Join Date
    Feb 2005
    Location
    Canberra, Australia
    Posts
    310

    Default Re: Philips MPXL-DL50 on eBay for cheap

    XeVision, thanks for the offer. If you can sell the DL50 to us at ~ $100 I too would rather buy through you than eBay.

  10. #10
    *Flashaholic* LuxLuthor's Avatar
    Join Date
    Nov 2005
    Location
    CT
    Posts
    10,280

    Default Re: Philips MPXL-DL50 on eBay for cheap

    XeVision, have you had a chance to look at the replacement Philips bulb (XL50) for the discontinued DL50?

  11. #11

    Default Re: Philips MPXL-DL50 on eBay for cheap

    Quote Originally Posted by LuxLuthor
    XeVision, have you had a chance to look at the replacement Philips bulb (XL50) for the discontinued DL50?
    Yes, I know about that bulb I have looked at it, Philips has offered it to me. It is not a true replacement for DL50 it does have some performance enhancements over std Philips D2S. It looks identical to a standard D2S from Philips only the part number is different and the fill of halides is slightly changed. It is no way in the same league as the old DL50, it is a "souped" up D2S. If this is the choice then I prefer GE D2S performance data. I have the non public data comparing GE to Philips. Independent Certified Lab results from GE. Lumens mainenance and color maintenance are better using GE D2S.

  12. #12
    Flashaholic*
    Join Date
    Jun 2003
    Location
    Portland Oregon
    Posts
    2,407

    Default Re: Philips MPXL-DL50 on eBay for cheap

    there is one thing I do not like about xenlights ballast
    is that it is very noisy - loud

    even when the bulb is warmed up

    not too bad once you mount the ballast inside a light.

    I would also prefer 35/50 watt.

    I wonder why they made it 25/50 watt ?

    it is a nucon ballast and nucon seems like they know a thing or two about hid.

    http://www.nuconverter.de/ehid.html

    500 hours at 25 watts is a long time when you consider the 15 mcp thor I use it in came with a 100 hour bulb.

    still I will not use it much at 25 watts.
    Last edited by markdi; 01-26-2006 at 11:45 PM.

  13. #13

    Default Re: Philips MPXL-DL50 on eBay for cheap

    I have very little knowledge about 4000Hz ballast/bulb operation. It is interesting to note that no other ballast mfg. uses 4KHz frequency, especially considering their claimed advantages. All others are 300-500 Hz. They do have some patents but that does not stop others from using 4KHz, just from copying their circuit design.

    I wonder why they made it 25/50 watt ?
    Good question, why not 35-50 insead of 25-50 especially with DL50, with D2S less of an issue.

  14. #14
    Flashaholic
    Join Date
    Feb 2005
    Location
    Canberra, Australia
    Posts
    310

    Default Re: Philips MPXL-DL50 on eBay for cheap

    I emailed Nucon earlier asking how much they charge for the DL50. They've just replied and the cost of a pair of DL50s is 130 EUR which is around $160US or $80US each. I was under the impression that DL50s cost around $250US each which is why I thought $99 on eBay was such a great deal, but now it looks like ~$100US is the norm.

    Regarding driving the DL50 at 35W, I've emailed a few people to try and get a definitive answer. It's not that I don't trust XeVision, itís just that I want a definitive answer based on actual testing rather than just an educated guess. Markdi posted his reply above which says he hasnít encountered any problems so far, but he has only operated it for ~30 hours so itís not yet possible to tell if it will be OK in the long term. I also received replies from Marc at AE Light and Nucon. Unfortunately both were nothing more than educated guesses, so I'm no better off than when I started.

    Marc said that life should be the same at 35W as long as the ballast supplies a stable current. Nucon said that at 4.5kHz as with their ballast cathode fall is minimized when dimmed and therefore spluttering isnít an issue. With a normal ballast he only said that running at 35W is dumb because it isnít as bright as a standard D2S at 35W, he didnít say if it was actually bad to run at 35W.

    So from all this it looks like 35W might be OK for the DL50 with the 4.5kHz ballast, but will most likely not be OK with a normal lower frequency ballast, although this is all based on educated guesses rather than actual testing. I had really hoped that 35W would be OK because a 35/75W mode is much more useful than just 35/50 or 50/75 because the runtime difference between 35/50 or 50/75 isnít great enough to really be worth it IMO.

  15. #15

    Default Re: Philips MPXL-DL50 on eBay for cheap

    Quote Originally Posted by That_Guy
    So from all this it looks like 35W might be OK for the DL50 with the 4.5kHz ballast, but will most likely not be OK with a normal lower frequency ballast, although this is all based on educated guesses rather than actual testing. I had really hoped that 35W would be OK because a 35/75W mode is much more useful than just 35/50 or 50/75 because the runtime difference between 35/50 or 50/75 isnít great enough to really be worth it IMO.
    We would not offer 35/75 anyway, too much trouble to make a ballast with that much range. Starting requirements are much different at 35 watt than at 50 watt much less 75 watt. So we will most likely do 35/50 and maybe also 50/75.

    No offence taken, I already admitted limited knowledge about that ballast system. There was a time that we considered using it (Nucon/Xenlight). 1.5 years ago. After testing we decided NO. This ballast cannot be pulsed or restarted frequently. It protects itself and shuts down, must wait like a minute to restart. Also, none of the connectors to the ballast are water tight.

  16. #16
    Flashaholic*
    Join Date
    Jun 2003
    Location
    Portland Oregon
    Posts
    2,407

    Default Re: Philips MPXL-DL50 on eBay for cheap

    well a 4khz ballsst is smaller - lighter and more efficient and may be better for bulb output and bulb life.

    25 watts at 4khz may be just fine for all d2s based hid bulbs including the dl50.

  17. #17
    Flashaholic*
    Join Date
    Jun 2003
    Location
    Portland Oregon
    Posts
    2,407

    Default Re: Philips MPXL-DL50 on eBay for cheap

    I could be wrong but a dl50 is a d2s bulb

  18. #18

    Default Re: Philips MPXL-DL50 on eBay for cheap

    QUOTE=markdi XeVision in blue.
    Well a 4khz ballsst is smaller - lighter and more efficient and may be better for bulb output and bulb life. In general, definitly not better overall but it may be less harmful at very non typical low power settings. All of this is speculation though by all of us. Our new ballast which we will unveil to our markets in 2-4 months is both smaller and lighter than Xenlight and better than 90% efficient.

    25 watts at 4khz may be just fine for all d2s based hid bulbs including the dl50. That is possible, but I am quite confident the normal life will be reduced. The bulb never reaches the designed for normal steady state operating temperature. In a practical way will that mater, in your case probably not at the rate of hours per year you will run it. In industrial applications I'd bet money the life is significantly reduced to less than 1/2 of normal if it is run at even 35 watts for an extended percentage of total use.

  19. #19

    Default Re: Philips MPXL-DL50 on eBay for cheap

    Quote Originally Posted by markdi
    I could be wrong but a dl50 is a d2s bulb
    The DL50 IS NOT a D2S bulb. It is a P32d socket compatable bulb. This is a significant difference. This bulb was origially designed by Philips for projection screen units (like for projection TV) This bulb never found much acceptance in that market so they ceased production, it was not powerful enough.

    The D2S, D2R and D1S/R bulbs were designed for automotive headlighting from the start with this application the designed for purpose. The fact that it has been found suitable for other applications is a side benefit for the big makers.
    The fact that Philips chose to make the DL50 using a P32d socket style was a manufacturing convenience. The engineering was done and it was easy to implement using existing receiver socket stocks. The D2S came before the DL50 bulb.

  20. #20
    Flashaholic
    Join Date
    Feb 2005
    Location
    Canberra, Australia
    Posts
    310

    Default Re: Philips MPXL-DL50 on eBay for cheap

    Quote Originally Posted by XeVision
    Our new ballast which we will unveil to our markets in 2-4 months is both smaller and lighter than Xenlight and better than 90% efficient.
    Is this the 35/50W and 50/75W ballast that you've mentioned earlier?

  21. #21

    Default Re: Philips MPXL-DL50 on eBay for cheap

    Quote Originally Posted by That_Guy
    Is this the 35/50W and 50/75W ballast that you've mentioned earlier?
    We may use it for the 35/50 watt version but not the 50/75. It is not large enough to fit 75 watt componentry.

    We will probably use it in other products/markets 1st. But, we have many complex decisions to make over the next few months. Its really a matter of priorities. We have many HID products and markets to serve, somehow we must decide who or what markets get things first. We are unveiling 7 or 8 new products this year spread around in 4 types of markets, We are very busy to say the least.

  22. #22
    Flashaholic*
    Join Date
    Jun 2003
    Location
    Portland Oregon
    Posts
    2,407

    Default Re: Philips MPXL-DL50 on eBay for cheap

    I read that the dl35 and the dl50 were designed for fibre optics and operating room theatre lights

  23. #23
    Flashaholic*
    Join Date
    Jun 2003
    Location
    Portland Oregon
    Posts
    2,407

    Default Re: Philips MPXL-DL50 on eBay for cheap

    some on around here some where mentioned the phillips
    rp50

    quote

    RP50/35 MPXL Philips non automotive special bulb for coupling light into fiber optics with elliptical reflektor. Bulb might be also applicalbe for lights on helmets, small torch heads or projection light optics.

    unquote

    nucon hid lots of info here

    http://www.nuconverter.de/ehid.html


    automotive hid faq

    http://faqlight.carpassion.info/hl-hid-bulbs.htm

    quote

    The main developer of automotive HID bulbs, Philips, has a 50W HID bulb (Product name: MPXL-DL50) and supporting ballast readily developed. Per fall 2002, there was no automatic shutdown on these ballasts. Output is around 5300lm. Inserting this bulb into a vehicle lamp designed for the 35W HID bulb gives more some more output, but its not a huge difference

    unquote

    I think cpf needs a seperate hid forum.

  24. #24
    Flashaholic*
    Join Date
    Jun 2003
    Location
    Portland Oregon
    Posts
    2,407

    Default Re: Philips MPXL-DL50 on eBay for cheap

    xevision

    how did you turn the text in your post's blue ?

  25. #25

    Default Re: Philips MPXL-DL50 on eBay for cheap

    RP50 has an integral reflector (MR-16 sized) 50 mm diam. reflector (eliptical not parabolic) for fibre optic applications. I also use these for some of my customers. It also uses a P32d base.

    I know all about these other forums.

    For a few years Mostly some years ago individuals tried using DL-50 in cars. It is illegal DOT etc. for headlighting because it is much too bright. Philips did make a small run of ballasts (samples) for off road use 50 watt applications. The interest was not great enough so they dropped it 3-4 years ago. I have 2 of thes ballasts.

    I believe!! the DL35 is for dental applications, UV curing light they don't use UV blocking quartz on it for this application.

    I don't have time right now to tell you how to do different colored text.
    Last edited by XeVision; 01-28-2006 at 10:29 AM.

  26. #26
    Flashaholic
    Join Date
    Feb 2005
    Location
    Canberra, Australia
    Posts
    310

    Default Re: Philips MPXL-DL50 on eBay for cheap

    Quote Originally Posted by markdi
    how did you turn the text in your post's blue ?
    If you click quote on one of XeVisions posts you will see the tags. You can also see how to use it here. It is [color=blue]text[/color ] <-- remove the space before the last bracket.

  27. #27
    Flashaholic*
    Join Date
    Jun 2003
    Location
    Portland Oregon
    Posts
    2,407

    Default Re: Philips MPXL-DL50 on eBay for cheap

    I think you use word or something for colored text.

    the phillips duv 35 is a uv bulb

    I think the phillips dl35 is a premium version of the 85122

    I like my phillips dl35's

  28. #28
    Flashaholic*
    Join Date
    Jun 2003
    Location
    Portland Oregon
    Posts
    2,407

    Default Re: Philips MPXL-DL50 on eBay for cheap

    thanks

    I wondered how to do it

    I am not bold enuff to ever use it

    ha ha

  29. #29

    Default Re: Philips MPXL-DL50 on eBay for cheap

    QUOTE=markdi the phillips duv 35 is a uv bulb. Yes, I agree you are absolutely right.

    I think the phillips dl35 is a premium version of the 85122 You could be correct, I believe this is no longer made either.

    I like my phillips dl35's. Do you drive that at 50 watts?

    Interestingly the photos on the Philips spec sheet for DL35 and 50 show a bulb that looks nothing like the DL-50 "fat boy." I also have a copy of it here with the same photos?????? Maybe the Photo is the DL35, I have never seen one, since you have a DL35 does it look like the photo and a std D2S?

    I use blue because it makes it clear who said what when answers are mixed into the text of the questions. I believe, this provides better continuity of readability.
    Last edited by XeVision; 01-28-2006 at 10:32 AM.

  30. #30

    Default Re: Philips MPXL-DL50 on eBay for cheap

    Quote Originally Posted by markdi
    I read that the dl35 and the dl50 were designed for fibre optics and operating room theatre lights
    I believe those were secondary applications after development.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •