Our LED lamp uses high brightness LED chips.The heat dissipation shell with good performance .Silicone rubber is used to strengthen the seal to ensure the high standard waterproof performance of our LED lights.All lamps are subject to a 24-hour aging test, and strict quality control before delivery to ensure the quality of the lamps.Note: gray shellSpecifications:Power: 50W; 100W; 150W; 200WInput voltage: AC 220-240V; AC 110-120VPower factor: 0.95Color temperature: cool white 6000K-6500KColor rendering index: 70LED type: COBNumber of LEDs: 1/2/3/4 pcsLuminous flux: 4000/8000/15000/20000 LmSize (length x width x height) (about): 180*130*25mm/7.09*5.12*0.98in, 260*180*25mm/10.24*7.09*0.98in,390*180*25mm/15.35*7.09*0.98in,360*270*25mm/14.17*10.63*0.98inWeight(about): 0.45/0.9/1.35/1.85 kgHousing material: die-cast aluminumMask material: glassBeam angle: 120Protection level: IP65Working temperature: -35 to +55LED life: 50000 hoursEnergy efficiency rating: ACertification: CE and RohsPacking List:1*LED Light1*Instruction