Adds Style to any PC with a transparent window Low heat output and Low energy consumption Comprehensive instruction manual Easy installation by connecting directly into power supply This Twin Cold Cathode Fluorescent Lamp is designed to used in conjunction with a transparent side panel or window kit to illuminate the inside of your computer case. Unlike neon our cold cathode kits were created exclusively for use in Personal Computers and other home appliances they consume much less power and the 100 acrylic casing allows an even distribution of light. Each kit includes Two cold Cathode tube with both wires coming out one end of the protective acrylic tube important feature. Twin connector invertor Additional female molex power connector Round ON OFF switch Extension cable Comprehensive instruction manual. Highly rated by many of the case modding web sites