Can some one give me a list of single battery current regulated LEDs in the market...
What single battery?
AAA, AA (Alkaline, NiMH or as LiIon (10440, 14500)), CR2, CR123, 18650,...?
A few CR123 lights :
Nitecore EX10
Fenix PD10
Liteflux LF3XT
Surefire E1B Backup (not 100Lumen but very bright)
A few AA / AAA size lights:
Fenix LD01
Fenix LD10
Nitecore D10 (works also with LiIon)
Liteflux LF2XT or LF5XT (works also with LiIon)
This are only a few light, not a complete list. this would be longer without mose specific demands....
If you want a head light, check out i. e. Zeralight or Surefire Saint
