This is a double-ended input LED F4T5 tube light with 2W total input power to replace 4W energy-saving fluorescent. It is not dimmable and works from 12-30VDC. The installation is easy, please make sure that the LED Tubes must be directly wired to your 12/30VDC house current from the two input ends on both sides without the use of a ballast or starter.
****Please read the manual and description carefully before making any purchasing. We assume that each buyer has read them and known how to wire this type LED tube lamp! ****