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hsb3852 yes this led does require a heat sink. The base of the led is meant to be soldered onto a circular pad on a PCB that serves to conduct heat away. You need to drive it with a 700mA *constant-current* led driver. The voltage of the driver you choose depends on how many leds connected in series that you want to drive (you need approx. 3.4V per led in the string, e.g. for 3 leds the driver must be at least 10.5V at 700mA).
2019-06-02 02:22:52 Helpful (2)