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Specification:Quantity: 1 piece / PackBrand: ChanzonPower: 30 Watt (Max)Emitting Color: YellowRecommended Current: 900mAForward Voltage: 20-24VLuminous Flux: 2400-2600LMEmitting Angle: 120-140 degreeWith Double Golden Wire (99.99%) and Copper FrameKindly 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:Constant current LED drivers (900mA Plastic Case): ? Search B01MSANIYC on AmazonConstant current LED drivers (900mA Aluminum Case Waterproof): ? Search B01MR98KCE on AmazonConstant current LED drivers (900mA No Case only PCB Board): ? Search B01N25K808 on AmazonLED Lens Kit 20-100W 44mm (60 degree): ? Search B06XKV9PWY on Amazon