A light control system , comprising: a power converter configured to convert an input power received from a power source to a supply power, wherein the power converter comprises a rectifier coupled to an inverter by a direct current `DC' link , and a power buffer , wherein the rectifier comprises a power factor corrector 'PFC' having a first PFC input configured to receive power from the power source , a second PFC input configured to receive a feedback signal from a feedback circuit , and a PFC output configured to output a DC power, the feedback circuit being coupled to the PFC output and the second PFC input ; a UV light source configured to, using the supply power, emit UV light at an intensity related to an electrical parameter of the supply power; a light sensor configured to sense the light emitted by the light source ; and a control device communicatively coupled to the PFC and the light sensor , wherein the control device is configured to: receive, from the light sensor , a sensor signal indicating an input parameter, wherein the input parameter is related to at least one of an irradiance of the light emitted by the light source , a voltage level of the light source , an efficacy level of the light source , an age of the light source , or an operating frequency of the light source , and wherein the feedback signal is based on the input parameter, the input parameter controlling a logic circuit of the feedback circuit to output one of a plurality of reference voltages for controlling an amount of voltage at the PFC output ; wherein the logic circuit comprises a variable voltage divider having an output voltage, which is based on the input parameter to adjust the voltage of the DC power provided to the inverter and thereby facilitate the UV light source to emit light at a target intensity. a power converter configured to convert an input power received from a power source to a supply power, wherein the power converter comprises a rectifier coupled to an inverter by a direct current `DC' link , and a power buffer , wherein the rectifier comprises a power factor corrector 'PFC' having a first PFC input configured to receive power from the power source , a second PFC input configured to receive a feedback signal from a feedback circuit , and a PFC output configured to output a DC power, the feedback circuit being coupled to the PFC output and the second PFC input ; a UV light source configured to, using the supply power, emit UV light at an intensity related to an electrical parameter of the supply power; a light sensor configured to sense the light emitted by the light source ; and a control device communicatively coupled to the PFC and the light sensor , wherein the control device is configured to: receive, from the light sensor , a sensor signal indicating an input parameter, wherein the input parameter is related to at least one of an irradiance of the light emitted by the light source , a voltage level of the light source , an efficacy level of the light source , an age of the light source , or an operating frequency of the light source , and wherein the feedback signal is based on the input parameter, the input parameter controlling a logic circuit of the feedback circuit to output one of a plurality of reference voltages for controlling an amount of voltage at the PFC output ; wherein the logic circuit comprises a variable voltage divider having an output voltage, which is based on the input parameter to adjust the voltage of the DC power provided to the inverter and thereby facilitate the UV light source to emit light at a target intensity. <EOS>