... Chip-good quality 4.Finlike heat sink COB LED high bay 50/80/100W 1. Taiwan chips, 100lm/w ... 50,000 hoursRelevant Certificate CE, RoHSWarranty 2 years Beam Angle 120 degrees Power Efficiency:80%Color Temperature Warm white ... 2,600-3,700K /Neutral White 3,700-5,000K /Cool White 5,000- ... CE.ROHS.EMC for global market.High power LED,LED we use Taiwan or Epistar chips and ...