... 90% 4.PFC > 0.905.constant current led driver 28W, 30W, 32W (availble)6.constant current 700mA, 900mA, 1250mA (available)7. ... 9wattworking mode: constant curret typedimming mode: Triac dimmable effiency> 88%PFC> 0.91 AC & DC with wiring leadsoverload, ... over heat,over voltage,short circuit protection 2 years warranty LED bar light & G40 street light open frame Constant current ...