Philips dl50 hid bulb

[Mugrunty]

Hello. I hope this is a good spot for this post

Here's the situation. I work for a powersuppy company and they are selling some philips dL50 bulbs. They are 50 watt hid 3900k bulbs rated at 5100 lumens or something. I think they were selling them in pairs for 45 bucks or something. I forget where they got them, but I think they are just trying to get rid of them. They are willing to give me one and was wondering if they are worth using for some kind of ultra bright flashlight. I tried looking up the bulb here, but wasn't sure if people used them in the barn burner or something? I'm not sure of the size of the bulb either. Apparently they are selling them at half what philips charges. I think they were also selling them on eBay once in a while. Who knows. (I never saw them...)

Anyway, I was wondering what you guys thought of this bulb or if it's worth the money to buy a couple.

Thanks!

 

[Mjolnir]

So it is just a bulb, not a ballast?
If you have the money to spare, then you should definitely get one, and maybe try to mod a halogen spotlight with it.

 

[Mugrunty]

Correct, It is only the bulb. I'll try and pick one up tomorrow. They sell them by the pair, but they have an odd number of bulbs. Luckily for me, this means I can get one for free.

I wonder if I could fit one in the POB and get a 50watt ballast for it somewhere. Or maybe even overdrive it to 75 watts? I dunno. That would be one stinken bright flashlight!

Too bad they can't throw in a ballast as well, lol. The only thing I'm worried about besides the ballast is the physical size of the bulb.

PS. What kind of bulbs are in those worklights you see on the thruway? You know, the ones that look like corked sun? (looks like daylight?)
They usually have 4 of them hooked to a generator of some kind.

 

[BVH]

Where can these bulbs be purchased? $45 for a pair is a good price. I'd buy 4 or 6. Can you do a small group buy?

 

[Patriot]

I'll buy a couple. Please keep us updated on this deal.

 

[XeRay]

There are 2 versions DL-50 which ones are they ?? The old ones are much more valuable than the newer DL50/740's Photos will tell all for the guys here. Either model it is a steal at those prices. The newer model is not as suitable for being driven at 75 or 80 watts compared to the older version.

 

[Patriot]

So 84W would be a "no no" for the non-Fatboy?


EDIT: Actually, you just stated that it wasn't "as suitable." What will the down side be Dan?

 

[Bullet Bob]

I'd be in for 4 or 6 of them. Would appreciate anything you coud do to bring this off. :twothumbs

 

[BVH]

Charge us a few bucks per bulb to cover your effort. The company should be happy too!

 

[XeRay]

So 84W would be a "no no" for the non-Fatboy?


EDIT: Actually, you just stated that it wasn't "as suitable." What will the down side be Dan?

Because the arc chamber is the same size as a std 35 watt bulb on the /740 version, I do not like to use at more than 50-60 watts. The old "fatboy" is the best bulb (bar none) to use for 75-80 watts. Have not pushed it to more than 80, that is the most we would consider to go but prefer to keep it at 75 or less. Remember it is bulb watts we are talking about after the losses (efficiency) of the ballast input vs output power.

It will loose lumens rapidly (50%) in a few hundred hours at those power settings. It will also likely explode if you run it for longer periods, more than 5-10 min at a time. The glass arc chamber is thinner walled and smaller, higher pressures PSI and the glass gets hotter (softer).

 

[BVH]

OK, thanks Dan.

I'm still in if they are Fatboys.

 

[bshanahan14rulz]

I'd be in for a couple, depending on when the pay-by date would be... but only if they are fatboys

 

[Patriot]

Same here, still in if they're the older fatboys. I think I only have a use for them in my 84W light.

Thanks for the help Dan.

 

[Mugrunty]

I was too busy today to ask for the bulb. I'll have to ask on monday (don't work fridays...)

But, I did get the datasheet yesterday, and remembered to bring it home today. The weird thing is, they haven't sold any for a while. I'll have to tell the guy I might have found a few. Chances are, they still wont care. I dunno.

Anyway, I'm scanning the datasheet now. It'll be up in a minute or two. I hope it's the fatboy then! :thumbsup:

 

[Mugrunty]

Ok, it's going to be slightly more than a minute. I seemed to have guessed my password too many times at photobucket and It wont let me in. I think I remember it now! lol

Here are the specs off the datasheet (until I get it up here)

It simply days DL50. It has an arc length of 4.2mm mounted on a p32d base. It looks like this datasheet it for both the 35W model (DL35/745) and 50W model (DL50).

5000 Hr life with the 35W
3000 Hr life with the 50W

The DL50 is given the following specs:

5300 lm +-450
Color temperature of 3900K
CRI of 75
Emits very little UV

cold pressure of 2.6 bar
hot pressure of 40 bar.

--------------------------------------------------------------
It also has lots of other stuff, including dimensions and some descriptions.
I'll wait till photobucket lets me in!

 

[Mugrunty]

Ta da!

So, is this the right bulb you guys are talking about??

 

[BVH]

If the photo is accurate, then it is not the Fatboy. :mecry:

 

[PhotonWrangler]

I'd be in for a pair of them if they're available.

 

[Mugrunty]

I think the only way to solve this is for me to get that sample! I thought I remember it being rather large. But it may have been the casing that it was in.

Oh well, guess we'll have to wait till Monday! Dang...should have picked it up today!

I'll also see what they say about the sales. I'd love to have a stupid bright flashlight. Except, I don't know of a light yet that is too bright. Does it exist? I guess anything brighter than the sun is unnecessary.

 

[Patriot]

If the photo is accurate, then it is not the Fatboy. :mecry:

I do believe you're correct. :mecry:


Let's hope the picture is wrong