Each light base has LED beads, works with a acrylic pattern plate for showing colorful light Come with IR remotes, which allows for convenient operation about dimming and ON/OFF 16 static color light and 4 lighting modes to choose such as flash, strobe, fade, smooth The LED base operated by 3 x AAA batteries(not include) or USB Charger Cable, which can be replaced easily Lights base worked perfectly for your projects, display your DIY acrylic plate Specification: Power: 3W Input Voltage: DC5V Slot size: 72 x 4.6mm Colour:Black+white Material:ABS Size:87 x 87 x 40mm Package Contents: 12 * Lamp Base.(8Pcs Black & 4Pcs White) 12 * USB Cable. 12 * Remote control Only 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.