Microedge electronics manufactures solid-state device energy savings lamp controller [eslc] for applications in fluorescent and most lamp types. These energy saving lamp controllers are also useful for applications in incandescent, mercury vapour, quartz and metal halide. The lamp controller offers advantage of up to 20% adjustment of savings level without proportionate reduction in the light output. The energy saving lamp controller [eslc] are available with salient features like controls entire lighting circuit from the lighting panel; better alternative to switch off lamps on selective basis to save energy; helps in even distribution of lighting; cost effective, simple and easy to install; short payback period; and facility for automatic lighting system level control based on ambient light. The most unique feature of this energy saving lamp controller is that when the ambient light is high, the illumination level provided by the lamps is reduced to obtain best energy saving possibility and when the ambient light level is low, the output of the lamps is increased. This energy saving lamp controller unit is useful for applications in offices, factories, for shop floor lights, streetlights, etc.