10pcs LED PCB Board aluminum substrate 1w 3w 5w lamp bead general power lamp bead cooling plate
https://www.vogueparade.com/shopping/EN/200185144/1/1005003532328115/10pcs-led-pcb-board-aluminum-substrate-1w-3w-5w-lamp-bead-general-power-lamp-bead-cooling-plate//