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These are light and fairly thin. Seem effective in my setup.I paired with some of those AC driverless led cobs. Seems ok. With moderate active cooling (5” desk fan pointed at the fins) this unit keeps two 30W led cobs running at peak and the sinks are tepid to the touch. Without active cooling the heatsinks quickly become hot to the touch and the cobs start to sag power to about 20w apeice.
Verified purchase: Yes | Condition: New
This heat sink was perfect for keeping the temp of dummy load resistors under control.
Verified purchase: Yes | Condition: New
Nice size with plenty of surface area to transfer heat.
Verified purchase: Yes | Condition: New
nice
Verified purchase: Yes | Condition: New