Specification:New and excessive qualityName: LED RadiatorSize:Diameter 20, 27, 32, 40MMMaterial: aluminumScope of use: right for 1W, 3W high-power lamp beads for heat dissipationDescription: High thermal conductivity and quick warm temperature transfer, directly repair the light board of appropriate length on the radiator Included:1pc Note:1. Due to guide measurement, please enable an error of 1-3mm. As assorted computer systems display diversified colors, thank you in your understanding, the particular product colour may be barely assorted from the image.