inputs.text: 2led allow brightness control long battery life light little bluish - received one black no adapter months ago verdict likely use reading books night also not feel missing adapterbrief overview 2 bright leds lenses light blue little red yellow think steady neon light uses 3 three aaa batteries makes base little heavy 40hour battery life claim made package not exactly timed feel like lasts forever charge power adapter not justify paying twice much book light given long battery life inconvenience running electric wire bed relatively long flexible arm turn 1 2 leds solid build bit heavy no problehem using paperbacki definitely use lamp reading books night doubt ever use flashlight work light unless no choice buy another book light today would mighty bright would go no adapter version sells half price