such as led lights induction lights fluorescent lights halogen incandescent high low pressure sodium mercury vapor metal halide or one of many others in operation the troffer is installed the same way a standard troffer is installed today the ac light tube 2 illuminates when a user turns on a light switch in a given room this utilizes available ac power from the grid the ac light tube 2 stimulates the left photovoltaic sheet 4 which reclaims light energy and transfers it to the dc light tubes 3 through conductive wiring when the dc light tube 3 illuminates it stimulates the right photovoltaic sheet 4 a and the reclaimed light energy is stored in the battery 5 in the event of a power outage the control module 6 activates and distributes energy to the dc light tubes 3 thereby providing some light redundancy in another embodiment of the invention it operates as such the ac light tube 2 illuminates when a user turns on a light switch in a given room this utilizes available ac power from the grid the ac light tube 2 stimulates the left photovoltaic sheet 4 which reclaims light energy and transfers stores it to battery 5 through conductive wiring the dc light tubes 3 turns on by using energy from the battery 5 while the right photovoltaic sheet 4 a reclaims light energy and transfers stores it to the battery 5 in the event of a power outage the control module 6 activates and distributes energy to the dc light tubes 3 thereby providing some light redundancy the above methods of operation are not meant.