... 2, D type AL housing 3, LED constant current driver 4, 1.0mm Aluminum PCB LED tube 1.2m TDL-YG2004-18/G13Type ... LED chip, high light efficiay, low light decay.2, D type AL housing assure excellent heat dissipation, prolong 3 times tube life3, LED ... driver can improvelight efficiay and productReliability4, 18W LED tube can replace traditional 36W tube.5, 60% energy saving compared with traditional ...