Chanzon 10 pcs High Power Led Chip 1W Cool White 9000K 10000K 300mA 350mA DC 3V 34V 1 Watt Super Bright Intensity SMD COB Light Emitter Components Diode 1 W Bulb Lamp Beads DIY Lighting

Specification: Quantity: 10 pieces / Pack Brand: Chanzon Power: 1 Watt (Max) Emitting Color: Cool White (9000K-10000K) Recommended Current: 300mA Forward Voltage: 3.0-3.4V Luminous Flux: 100-110LM 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: Constant current LED drivers (300mA Aluminum Case Waterproof): ? Search B01MYBFR7U on Amazon Constant current LED drivers (300mA Plastic Case): ? Search B01N25KD0R on Amazon Constant current LED drivers (300mA No Case only PCB Board): ? Search B01MUDW3VF on Amazon LED Heat Sink Star Aluminum Base Plate: ? Search B06XKTRSP7 on Amazon