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Product Details Power: 50W Voltage: AC220V Display value: Ra ≥ 70 Chip crystal size: 10 * 21mil Material: Aluminum Thickness: 1 Size: 60 * 40mL Luminescent surface size: 25 * 25mm Thermal conductivity: Aluminum plate 2W/M · K Color: Warm White/Cold White/Natural White Application scenarios: Floodlights/Spotlights Usage temperature: LED requires a heat sink, and the center temperature of the lamp beads can not exceed one hundred degrees The temperature of the aluminum shell of the warmth sink can't exceed 80 levels Welding conditions: The temperature of the electric soldering iron is 400 degrees Celsius, and the welding time is ≤ 2 seconds