1, Manufacturer 2, CE and Rohs Certificate 3, 2 years warranty 4, lifespan: 50,000 hours 1*1W LED ... DriverSpecification Model No.HG-LD-1*1W Size 15X12X8mm Power 1*1W Forward Current ... 0.75@AC Efficiency 90% Applications MAR11Features:1)80~90% energy saving than incandescent lights2) ... 20~60degree Celsius, body temp. less than 538) LED life span: 30, 000Hours(Edison); 50, 000 Hours ...