Amazon.com: Awxlumv Large LED Aluminum Heatsink 200 x 220 x 18mm / 7.87 x 8.66 x 0.7 Inch Cooler 30 Fins Heat Sink Board : Electronics
Amazon.com: Aluminum Heat Sink, Heatsink Module Cooler Fin for High Power Led Amplifier Transistor Semiconductor Devices with 23 pcs Fins 3.93"(L) x 2.71"(W) x 1.41"(H) / 100mm (L) x 69mm(W) x 36mm(H) :