... Parameter: ItemUL-R541 Power54w Equal to CFL180W Lighting Source54PCS*1W LED LED Chip Quantity54pcswarranty time2 years Dimension Φ150*265 mm Working ... under temperature 50 degrees celsius, high luminous efficiency of single LED.3. long life-span: 50,000hrs, 6 times longer ... crystal lamp, Mirror lamp, Bedside lamp, Ceiling light, etc. Hot sale High power LED Stree lights 54w 72w with high lumens