Also depends how much you are willing to do to build a light with it.
Both of the ones Argo listed do require more specialized work, but are top of the line.
Most common ones would be……
- de-domed xp-g2, preferably older stock. They changed their manufacturing some on the newer ones.
- standard 3V led, avalible on standard DTP copper mcbcb’s in a number of sizes. Work with very common direct drive or regulated single cell drivers. Also can work with many different buck drivers.
test charts here >>More Emitter Test Results (xpg2, xpe2, mtg2) Updated 11-12-12
- standard 3V led, avalible on standard DTP copper mcbcb’s in a number of sizes. Work with very common direct drive or regulated single cell drivers. Also can work with many different buck drivers.
*xpl-hi, another standard 3V led, works with common components as well. Probably the most common right now.
-Very easy to find, even some stock lights come with these. A decent “go to” if you cant find dd-xp-g2, or want to trade a bit more lumens for throw. Also a bit more efficient.
>>XP-L HI 1A V2 LED Output test by Texas_Ace, Well, you have seen the HD, this is the HI. It is exactly what you expect.
*xhp-35 variants. standard, HD, and Hi versions, each have a bit different benefits.
- these are 12v leds. Drivers are somewhat limited, and most are larger in size (20-22mm or bigger)
These run quite hot if pushed hard.
>>XHP35 output and death test + PWM efficiency test by Texas_Ace
There are probably beam shots of most light and led combinations you can think of somewhere on BLF.