100x41x8mm Aluminum HeatSink Radiator Heat Sink for Speed Controller Circuit Board LED Driver Power IC Transistor Computer Used for : Various mini DC converter circuit board, LED, Power IC, Transistor, Computer Specifications: Materials : Aluminum Size: 100mm(L)x41mm(W)x8mm(H) The quantity of blade: 26pcs Weight : approx Package: 1 x Aluminum Heat Sink