Features: 25W LED Track light (2 wire),Website:http://www.cobleddownlights.com, 360 degree + 90 degree adjustable angle. 1) COB Chip: Citizen COB LED, 2) Driver: Lifud Driver 3) Housing: 6063 Aluminum Housing & 1070 Cold Forging Heatsink 4) Triac Dimmable and 0-10V Dimmable models are optional. 5) AC200-240V or AC100-277V Voltage, 6) Efficiency: 80 LM/Watt, 90LM/WATT. 7) Color temperature : 2700K, 3000K, 4000K, 5000K, 8) Ra>80, Ra>90 9) Special Designed Reflector+Lens without GlareSpecification Model LED Lumen Power Input Voltage (V) Beam Angle Size (mm) QD-CT0303-25A-2COB CITIZEN CLL032-1208A52000lm25WAC200-240V/AC100-277V10º/23°φ90*L123QD-CT0303-30A-2COB CITIZEN CLL032-1208A52400lm30WAC200-240V/AC100-277V10º/23°φ90*L123Application installation FAQ 1. What LED track light color does Qiled recommend? Warm white 2700K, 3000K creates a comfortable feel Cool white 4000K is fresh and clean Daylight 5000K and 6500K is ultra-bright 2. What lifespan for Qiled led track light? We guarantee 50000hours lifespan.3.What do you recommend 2 wire, 3 wire or 4wire is most popular in Europe?Generally, 4 wire is most popular, because it is suitable dual or more guide rail.