This maintained inverter can be used for two pin compact fluorescent lamps from 5 to 16W. It is possible to use this unit where two 9W lamps are powered from one ballast. One hour or three hours of emergency lighting is provided. 

6V Ni-Cad or 7.4V li-ion batteries can be used with the 5, 9, 11, 13 and 2D16W lamps. No changes to the inverter are necessary for any of the above combinations. The inverter’s small external dimensions make it suitable for small luminaires.

A safety start circuit is provided that prevents emergency operation until mains is connected. This enables installation without disconnecting or unnecessarily depleting the batteries. A pilot light is provided to indicate that the batteries are being charged and that they are in a healthy condition. Deep discharge protection is provided.

The unit is available in both covered and open circuit board configurations. A remote box option is available if high temperatures or small dimensions within the proposed luminaire will result in poor reliability or an illegal installation (i.e., in contravention of SABS Specifications) but wiring between inverter and lamp must be less than three meters.