Light for 32mm COB LED ---------------------------------- Exemple of this type of COB (Chip On Board) LED: - COB 32mm 5W 7W 3W 9W ca 220V 110V: https://fr.aliexpress.com/item/32839791976.html These chips needs cooling, this is mandatory. The light is designed for this type of Heatsink: - Aluminium Heatsink diameter 90mm, thickness 10mm: https://fr.aliexpress.com/item/4000316843799.html Can be adapted to other dimensions of circular heatsink. Be very careful ! --------------------- Use it at your own risk, don't forget this thing will operate at 220V or 110V.