Rechargeable and detachable There is 4400mAh rechargeable battery built-in, longer working time.300Lumens super bright and timer setting The led painting light is 300lumens super bright ,it is bright enough to light up your pictures, paintings or posters.3 lighting colours and brightness dimmable The cordless battery picture light has 3 lighting colours to select, warm light(3000k)/nature light(4500k)/white light (6000k).Remote control or touch button There are 2 switch modes . Remote control or touch button. Press the remote control to change lighting colours ,adjust brightness or set timer auto-OFF.Or you can short touch the button in the light to change colours or long touch the button in the light to adjust brightness.