HAOYI Each light base has LED beads, works with an acrylic pattern plate for showing colorful light. Comes with IR remotes, which allow for convenient operation of dimming and ON/OFF. 16 static color lights and 4 lighting modes to choose from, such as flash, strobe, fade, and smooth. The LED base is powered by 3 x AAA batteries (not included) or USB charger cable, which can be replaced easily. Light base works perfectly for your projects, displaying your DIY acrylic plate. Specification: Power: 3W Input Voltage: DC5V Slot size: 72 x 4.6mm Color: Black + White Material: ABS Size: 87 x 87 x 40mm Package Contents: 12 x Lamp Base (8 pcs Black & 4 pcs White) 12 x USB Cable 12 x Remote Control Only the above package content is included; other products are not included. Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. Measurement allows an error of +/- 1-3cm.