Where to get HPR71 Bulbs

IlluminatedOne

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Hi

Anyone know where you can get Philips HPR71 bulbs cheap ?, i have had a look around on the net and found a couple of places that sells the bulbs from between £4.95 to 8euros but wondered if that was a high price for them as i didnt know how much they should go for.

Seems high to me as you can get 20w bi pin halogens for £2 or so.

Its to go in a light i just got for cheap, a "Blue Point" magcharger clone type light.

I have looked for the ROP Low which are 11w and should also work but most places are in the US and the shipping costs exceed the cost of the bulbs lol.

Im in the UK so any places which are local would be a plus.


So anyhelp would be great.
 
Hi

Anyone know where you can get Philips HPR71 bulbs cheap ?, i have had a look around on the net and found a couple of places that sells the bulbs from between £4.95 to 8euros but wondered if that was a high price for them as i didnt know how much they should go for.

Seems high to me as you can get 20w bi pin halogens for £2 or so.

Its to go in a light i just got for cheap, a "Blue Point" magcharger clone type light.

I have looked for the ROP Low which are 11w and should also work but most places are in the US and the shipping costs exceed the cost of the bulbs lol.

Im in the UK so any places which are local would be a plus.


So anyhelp would be great.

How about Reflectalite?
 
I just want to say that I promoted the Philips HPR71 because it is very commonly available in Australian hardware stores, e.g. Bunnings, off the shelf. It is packaged and promoted by Eveready or Energizer. It is presumably also common in Germany - it's country of origin.

For those in other countries, you can throw a blanket over the (German) Philips HPR71, the (American) Pelican 3854L, and the (Japanese) Reflectalite GH24. Use whichever of the three is most easily available to you. Results at 7.2V will be hard to tell apart.

One interesting thing to note is the envelope shape. The HPR71 and GH24 are halogen tubular with a top-mounted exhaust tip - they physically resemble the RoP High, but perform like the RoP-low. The 3854L and 3853L are of tubular domed construction, physically resmbling the Magstar Xenon bulbs, and have the advantage of fitting through the smallest cammed reflector openings, making for a nice beam profile.
 
So will the HPR71 fit in a 8.3mm reflector (WA/ROP sized)? I saw some in B last weekend for $11AU and nearly bought one to try.

Cheers,
Nova
 
Thanks again for the help im going to have a look and order some spare 10W's for my light for the moment.


Also the HPR71 is 9mm in diameter as i measured it today with a vernier caliper so it might not fit your reflector.
 
These are listed at Eurolight-Marketing. I have been looking for them in the US myself, no luck so far.
 
These are listed at Eurolight-Marketing. I have been looking for them in the US myself, no luck so far.

I have been looking for a source of Philips HPR71 bulbs in the US for a while also to no avail. I placed an order last night at kaidomain and saw and order one of these bulbs on the guess it might be our boy.
http://www.kaidomain.com/ProductDetails.aspx?ProductId=8981 Should get this order in 2-3 weeks and when I do I will share my results.

Happy Mods!
 
I have been looking for a source of Philips HPR71 bulbs in the US for a while also to no avail.
I don't understand why this is so important.
Either the Pelican 3853L or 3854L will do everything the HPR71 will.

But if it's that impotant, do you want me to send a bunch over?
 
I don't understand why this is so important.
Either the Pelican 3853L or 3854L will do everything the HPR71 will.

But if it's that impotant, do you want me to send a bunch over?

The quest for the HPR71 in my case would be the hope it throws a fatter beam. Sort of like it's bigger brother the 5761. The 3854L if a fine bulb in my opinion but in my experiments with it, it throws a small (very white mind you) beam. Also would like to say that it cost me about $10.00 to get my hands on a 3854L. I have to buy the twin 3854 high and low together. I am not a big fan of the 3854 High bulb but thats another fight for a different thread :D. If I can get the HPR71 for under $5.00 and if it has a fat beam it might be a winner.
 
I could send you some, but you wouldn't have much change out of US$20 each.

An alternative is, of course, the GH24 from Reflectalite in the UK. A very nearly identical bulb.
 
The quest for the HPR71 in my case would be the hope it throws a fatter beam. Sort of like it's bigger brother the 5761. The 3854L if a fine bulb in my opinion but in my experiments with it, it throws a small (very white mind you) beam. Also would like to say that it cost me about $10.00 to get my hands on a 3854L. I have to buy the twin 3854 high and low together. I am not a big fan of the 3854 High bulb but thats another fight for a different thread :D. If I can get the HPR71 for under $5.00 and if it has a fat beam it might be a winner.

Normally the bigger the filament, the bigger the spot. And as a rule of thumb higher watt bulbs have a bigger filament size.
 
Normally the bigger the filament, the bigger the spot. And as a rule of thumb higher watt bulbs have a bigger filament size.

Based on LuxLuthor's charts http://www.candlepowerforums.com/vb/showthread.php?t=179748 both the HPR71 and the 3854L consume 1.9 amps at 7.2 volts. The same wattage. From the same chart the HPR71 only measures 398 lumens while the 3854L generates 549 lumens at 7.2 volts. Based on the charts the 3854L would be the winner expecially if you consider that it is a more robust bulb and has a higher insta-flash point. I have a 3854L mod and it is a fine mode, I just want to know if the HPR71 throws out a fatter beam as mention before. I have run into the same issue with the 1185 vs 5761 mods. The 1185 rocks the house literally. Bounced off the walls inside the 1185 looks like it is superior to the 5761 but outside the juicy thick beam of the 5761 might beat it. Hard to say, just want a HPR71 to play with.
 
The quest for the HPR71 in my case would be the hope it throws a fatter beam. Sort of like it's bigger brother the 5761. The 3854L if a fine bulb in my opinion but in my experiments with it, it throws a small (very white mind you) beam. Also would like to say that it cost me about $10.00 to get my hands on a 3854L. I have to buy the twin 3854 high and low together. I am not a big fan of the 3854 High bulb but thats another fight for a different thread :D. If I can get the HPR71 for under $5.00 and if it has a fat beam it might be a winner.

Someone asked me where I got the HPR71 that I tested, and as noted in this post from that thread, Ictorana sent them to me.

You guys should look carefully at the 6 graph categories that he did in this thread from the Category Three - "RP Bulbs" I can't really see why people want them.
 
Plus - the GH24 is of the same physical shape as the HPR71 and even looks identical.

Now the 15W HPR72 - that's the one I'm keen to try. If I ever find one.
 
The HPR72 is probably even more elusive. I do have the 3854L in my Eveready with a 4.5V SLA (not overdriven as I am afraid of melting it). Bright. Very bright.
 
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