uxcell 280-350mA 1W LED Chip Bulb COB Light Beads Pure White Super Bright High Power for Floodlight 10pcs - - Amazon.com
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1W LED Driver Circuit Diagram
1w 3w Constant Current Led Driver Warm Natural Cool White Blue Red Green Yellow Led Chip Light With Pcb Lighting Transformers - Light Beads - AliExpress
3W/2W LED drive 700mA PWM dimming input 5-35V DC-DC constant current module
4 - 1W LED driver
1W LED drive - 350mA PWM dimming input 5-35V DC-DC step-down constant current module