One QuadPower LED and one DoublePower white LED emit 350 lumens Red, green and blue SinglePower LEDs for night vision have dimming and strobe settings and activate without cycling through white mode PowerTapTM Technology allows instant transitioning between full and dimmed power Brightness Memory allows you to turn the light on and off at a chosen brightness without reverting back to full power Sleek, low-profile design uses four AAA batteries