... 3years warranty 4. 9W, 12W, 15W,18W High power led lamp 15W 220V PAR38 E26/E27 ... output constant current drivers work separately, making sure high power LEDs work safety. 4.The power supply ... prevents from high temperature and short circuit.5.Long Lifespan, ... , school, office, hospitals, library etc; 2, Decoration for park, arena, hotel, supermarket, festive lamp etc. 9W, 12W, ...