USB Powered Disco Light Effect. 4 x 2W RGBW LEDs. Inbuilt & Sound to Light Programmes. USB A to USB C Lead IncludedPower Supply: 5Vdc USB Power Consumption: 10W LED: 4 x 2W (1R- 1G- 1B & 1W) Dimensions: 140 x 130 x 170mm Weight: 370g. This powerful RGBW Derby LED disco light is the perfect addition for a house party- with optional USB power options and a great output. The optional USB power allows the user to simply connect to a power bank (like you might for a phone) for a quick and easy light show or use as a complete lighting system when combined with the USB Party set (available separately). The Derby has 4 x 2 Watt RGBW LEDs- which are perfect for any small party or space with very low power consumption. The light can be used with its built-in or sound to light features- so no programming is required. Supplied with a USB A to USB C power lead.. led disco light-led effect light-led derby light