This multi coloured LED light is ideal for creating a captivating atmosphere in a man cave, den or games room. The LED light base is powered by 3x AA batteries (not included) or from the USB port of a laptop. It has 7 different colour settings and an automatic feature which will cycle through all the colours. Simply insert the acrylic slide into the LED light base, switch it on, select from : white, blue, cyan, red, yellow, green or purple coloured lights or set it to auto. The low voltage means the LEDs lights produce very little heat and is cheap to run. Dimensions: LED light base 85mm diameter x 40mm high. Acrylic slide 140mm wide x 140mm high X 4mm thick. What comes in the box: 1x Acrylic slide. 1x LED lamp base. 1x Micro USB power lead.