Easy charging and installation of gallery lighting. The wall picture light is magnetically attached to the swing arm, detachable for charging. USB charging cable included. The built-in lithium battery is 4400mAh. Quick installation with screws (included), just hang the lamp base on the screw on the wall. 3 light colors and adjustable brightness. There are 3 lighting to choose from: warm light/warm white light/white light (3000k/4000k/5000k). 300 lumens of super bright enough to illuminate your picture or statue artwork. The brightness is steplessly dimmable to any level. The optimal light coverage is under 5050 inches. 2 switch modes for cordless painting lights. Turn ON/OFF the LED picture light, change the light color or adjust the brightness via remote control or press the button on the side of the light bar. Timer function for LED display wall art light. Use the remote control to set the timer 15/30/60 minutes to turn OFF the light automatically. Size of the battery artwork light. 13 inches long light bar, 7 inches distance from the metal arm to the wall. 300 lumens of lighting can illuminate 40 inches wide picture, painting, photo frame, statues, antiques, decor, etc.