1 piece 300x 140x 20MM 8 x 3W / 20 x 1W LED Heatsink Aluminum Heat Sink Radiator for IC Electronic Chipset heat dissipation Color: Silver Compatibility: Motherboard Chipsets Features: It is designed for LED lighting lamps and lanterns, LED the cylinder light, such as heat dissipation design and production test. Aluminum extrusion heatsink structure, Strong heat conductivity and heat dissipation Fit for about 8pcs x 3W / 20pcs x 1W LEDs module( emitter),totoal upto 24 Watt Better cooling for LED light if adding a fan , and will cool more leds; Specification Product Name : Heatsink;Material : Aluminium Color : Silver Tone Size (L x W x H): Approx. 11.8 x 5.5 x 0.79 inch / 300 x 140 x 20mm Package Content : 1 x Heatsink Dimensions: 300 x 140 x 20mm