i wish i could give more that 5 star what a fantastic desk lamp the power of the light is unreal .you have 3 different setting for the desk lamp each are touch control a great way to use .Level One is 100% brightness. Level Two is 40% brightness. Level 3 is 10% brightness all are real good setting to use setting 1 is very bright i love that setting .not only a desk lamp Comes with large LCD to display date, time & temperate, powered by CR2032 battery, also functions including clock alarm, timer and birthday reminder that work real well love that function all in one item .USB to power it back up USB RECHARGEABLE-- 1200mAh Rechargeable Li-ion Battery inside i have found you can use for quite while before needing to recharge it . you can angle it to where you want it to shower you with light i has 180 degree different angle that work real nice too .the head where light is can then be folded back . great to take away with you pack down real well no bits sticking out fold real nice.well made stylish to will sit on a side unit bedside table , i use mine at my computer desk .LIFESPAN & WARRANTY: Adopting aluminum alloy heat sink, the leds are able to serve for years to come, longer lifespan than conventional one. 12-month warranty and 100% customer satisfaction guarantee. all in all a great deck lamp that has 3 tough settings even a led light changer at the base a nice touch different colour. very modern stylish deck lamp very impressed with the light power