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10-1000PCS 1W3W5W HeatSink LED Aluminum Base Plate PCB Board Substrate 20mm Star 16mm Kit DIY Cooling 20 mm for 1 3 5 W Watt
Diameter: about 20mm/16MM
Color: white and black
Thickness: about 1.3mm for 20mm/about 1.0mm for 16mm
Surface treatment processes: anodizing
Application: use for welding 1 piece LED beads (1W or 3W)
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