The existing CFL ballast is designed for whatever input voltage is installed in the facility – 120/208/277/347/480 etc. The Lunera CFL LED Lamp sits downstream of the ballast and accepts the high frequency (20-60kHz) constant current output produced by the ballast, presenting a voltage resistance that is approximately half the resistance of the CFL lamp it is replacing. Thus, power is reduced by approximately half vs. the legacy CFL lamp that was replaced.

As the electronic CFL ballast is a multi-stage architecture (from end PFC boost to a high DC voltage; back end resonant current tank output to AC constant current) the power factor and THD of the ballast are maintained.