Easy Photovoltech Private Limited manufactures Solar Dusk to Dawn Controller. Easy Photovoltech Private Limited is a manufacturer of a range of Solar Products namely Solar Power Packs, Solar Lanterns, L.E.D. & CFL Based Solar Street Light, Solar Charge Controllers,. Solar Water Pumps, Surface & Submersible, Solar Water Heating System. Solar Dusk to Dawn Controller is an energy saving device used for automatic switching of street lights making proper use of grid power and increasing the life of the lamps by operating the street lights from sunset to sunrise. Solar Dusk to Dawn Controller is highly reliable and efficient for continuous flawless operation.