High efficiency and energy saving with built in ultra quiet inductive ballast or high efficiency electronic ballast. Different material can be choose, ABS+PS, ABS+PC, PC+PC,Watts: T5 14W 21W 28W 35W T8 18W, 36W, 58WIP Grade: 65Taking T8 Package details as below for sample. For more information, pls feel free to contact us. Thanks Waterproof T5 14W 21W 28W 35W IP65 lamps