This item is an Aluminium Heat Sink of dimensions 100mm x 40mm x 20mm and weighs 60 Grams suitable for many general-purpose electronics applications to mount small power transistors, regulators, LEDs, power resistors etc. This heat sink can also be used with circuits to mount transistors, ICs and regulators. Specifications: Model: V1-THS-35-150-W Dimension in MM: 100x40X20 Weight: 80 Grams Color: White Coating: Natural Material: Aluminum Number of Blades: 7 Blade Thickness: 1.5MM Base Thickness: 3MM Thermal Characteristics: Application: General Purpose