1. 40mm Heatsink: Anodized aluminum heat sinks, substrate leveling and thick enough. Smooth surface without scratches and burrs
2. Can be applied for passive cooling of electronic IC chip, cooling NEMA17 stepper motors on 3D Printers (like Creality, Ender 3), TEC1-12706 Thermoelectric Peltier Cooler, power electric device, LED light, regulator devices, 50 amp bridge rectifiers and Chromecast etc.
3.Heat sink Dimension: 1.57x1.57x0.79inch /40 x 40 x 20mm; Weight: 1.45 oz / 41g per
4.Thermal conductive glue adhesive paste is the good partner to install the heat sink (gel is not included in the package)