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Specification: Quantity: 10 pieces / Pack Brand: Chanzon Power: 3 Watt (Max) Emitting Color: RGB (Red Green Blue) Common Anode Recommended Current: 300mA / Color Forward Voltage: R:2.0-2.4V G:3.0-3.4V B:3.0-3.4V Luminous Flux: R:50-60LM / G:80-90LM / B:40-50LM Emitting Angle: 120-140 degree With Double Golden Wire (99.99%) and Copper Frame Kindly Reminder: Constant current LED drivers are recommended for high power COB LEDs. Working temperature should be less than 60 Degrees Celsius / (140 Fahrenheit) with a Heat Sink System. Please refer to the positive (anode +) and negative (cathode -) sign on Leds. Related Accessories: LED Heat Sink Star Aluminum Base Plate: ? Search B06XKT61XF on Amazon