Online site for drop in incan bulbs

[ltiu]

Hi guys,

Little bit impatient here to search. I hope I can ask a few of you guys to suggest an online site where I can get kick-*** PR2 sized incan bulbs.

I am looking for PR2 sized drop-in incans for regular (generic) 2AA, 2C, 2D lights. I want kick-*** light output. I have been to Target, Academy and Walmart and picked up whatever PR2 sized incans they have (including the MagLite spares but these are no good (not good enough). Hoping you guys can steer me in the right direction.

Any suggestions on brand name and product numbers appreciated.

Thanks.

 

[Haz]

I've been waiting for one of these for years,

• high output
• reasonable cost (up to $15)
• PR2-flange bulb

the closest is the Ever-LED http://www.everled.com/
they are good because they can be used for 1 to 6 cells.

However, it's about $40 each, and using Lux1
i'm hoping at least the latest, Cree, Seoul, or Rebel.

One of the issue with the drop-in is the issue of heat, especially the light cannot draw the heat from the bulb, which may cause the bulb to degrade quicker.

 

[ltiu]

http://www.everled.com/
they are good because they can be used for 1 to 6 cells.

Thanks.

I am playing with LED PR2's for a while now.

But I would like to get an idea what "incans" are out there. Not just LEDs.

Can anyone suggest an incan PR2 with kick-*** output?

 

[lctorana]

Below 3v, incans struggle.

I have never seen or heard of a 2-cell bulb with much more than about 40 lumens.

Would love to be wrong, though.


(That 40-lumen bulb is the Magstar-Xenon LMSA201, btw. It's the brightest 2-cell bulb I've ever struck)

 

[mdocod]

There are some reasons you don't see the lamps available:

When manufacturing PR based lamps, you have to consider the audience that might get ahold of them. For starters, anything over about 0.75A draw is a waste of an alkaline cell, they are start to fall on their face around 1 amp, but many standard flashlight bulbs are up around 0.8-0.9A anyways, which is a good way to deplete alkalines and waste a lot of their potential power to begin with.

If a manufacture goes and makes a 2.4V, say, 3 amp PR based bulb, the user would be required to use NIMH cells for it to work correctly, but the number of people out there who would be willing to invest in $50 worth of cells and charger just for a slightly better flashlight is very minimal.

The other issue is that making low voltage, high current lamps, is difficult. They are often not very efficient because the filament is not an ideal shape for efficiency purposes.

If you are planning on sticking with alkaline cells, then you are stuck with bulbs under 1A, which means about 2-3W or around 20-40 lumens for a 2 cell, no getting around that. If you are willing to step up to higher voltage, (run 6AA in your 2D, or a pair of 14500 li-ion cells in your 2xAA light) then you can step up to some higher voltage lamps that offer more lumens and more efficiency, If you want to go above the 1A barrier on NIMH cells, you can, but nothing is available down around 2.4V.... There ARE some PR based lamps out there that are very high power, like the "ROP" bulb for example. Also, there are a number of medical lamps that get "potted" into PR bases and sold in group buys and by a few sellers here on CPF, but again, they are higher voltage bulbs (as well as higher current).

Trust me, I have scoured the internet for a 2.4V bulb that runs high current, doesn't exist.

 

[fivemega]

GH88 is highest wattage bulb I ever seen in that voltage range. Rechargeable NiMH will be necessary to power it correctly.