... chip, . 2, D type AL housing 3, LED constant current driver 4, 1.0mm Aluminum PCB LED tube 1.2m TDL-YG2004 ... alloyBus,train,home, office, hotel,Std&AUT:CE,ROSHItemParameterLED Type and Qty276 pcs 3528 LEDInput VoltageAC 180-240VMain Material6063 ... efficiay, low light decay.2, D type AL housing assure excellent heat dissipation, prolong 3 times tube life3, LED constant current driver ...