The perfect light to take with you anywhere .12LEDs make this light extremely bright.The adjustable dimmer switch allows you to choose the amount of brightness you want,from a low level reading light,to a super bright torch light.LED lights last up to 100,100 hours so they almost never need to be replaced.Dual power models make this light completely versatile.Plug it into any standard wall outlet using an AC adaptor(not included)to use it at home.Or install 4*D batteries(not included)to make this light completely portable.