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.