Item UL-DR18 Power 18W; 36W Equal to CFL 54W;108W Lighting Source High power 1W;2W LED Chip Quantity 18pcs warranty time 2 years Dimension 180*83mm; 180*103mm Working Voltage DC86V-265V Luminous flux 1620-1800lm; 2300-2500lm Color temperature Warm White: 2800-3200 K Pure White: 4000-4500 K Cool White: 6000-6500 K Material Aluminum + PMMA Viewing angle 15¡ã, 30¡ã, 45¡ã, 60¡ã Color Rendering Index >75% Power Factor ¡Ý 0.85 Life-span ¡Ý 50,000 hrs Protection rating IP54 Working temperature -30~55¡ãC(- 22~122 ¡ãF) Warranty 2 years Certification CE, RoHS, FCC and Gost Payment term T/T, Western Union. customized package.