Each light base has LED beads, works with a acrylic pattern plate for showing colorful lightCome with IR remotes, which allows for convenient operation about dimming and ON/OFF16 static color light and 4 lighting modes to choose such as flash, strobe, fade, smoothThe LED base operated by 3 x AAA batteries(not include) or USB Charger Cable, which can be replaced easilyLights base worked perfectly for your projects, display your DIY acrylic plateSpecification:Power: 3WInput Voltage: DC5VSlot size: 72 x 4.6mmColour:Black+whiteMaterial:ABSSize:87 x 87 x 40mmPackage Contents:12 * Lamp Base.(8Pcs Black & 4Pcs White)12 * USB Cable.12 * Remote controlOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.