Power: 20W/30W/50W/100WVoltage: DC75-78V/DC105-110V/DC150-155V/DC145-150VCurrent: 250-300mA/100W:600mALumen: 2000lm/3000lm/5000lm/10000lmDisplay value: Ra ≥ 70Series parallel connection: 2B25C/2B35C/2B50C/5B50CCrystal length contained within the lamp bead: 10 * 21milNumber of crystals inside the lamp bead: 20W:50/30W:70/50W:100/100W:250Material: AluminumAluminum substrate thickness: 1: forty six * 40mmLuminous floor size: 25 * 25mmThermal conductivity: Aluminum plate 2W/M · KApplication places: outside floodlights, projection lights, tower chandeliers, DIY changed headlights, etc conditions: LED operation calls for a warm temperature sink, and the temperature of the LED beads cannot exceed 65 ℃Welding temperature: The temperature of the soldering iron is 350 ℃, and the welding finishing touch time is ≤ 2 seconds.