... ,000 hrs 3. 3 years warranty 4. CE,KC and ROHS approved 5. Factory price 4 Inch 8W led down light housing ... ,office work station 3.Back lighting ,step lighting light boxes 4.Merchandising,exhibition stands, and panels.Company advantages1. Professional led manufacturer ... with all the partners.FACTORY VIEW PICTURE:CERTIFICATES:PATENT CERTIFICATES: 4 Inch 8W led down light housing CE and ROHS