Abstract: A lighting device to receive solar light by a color conversion optic and convert the solar light into a powering light, increasing the efficiency of electrical power generation using a photovoltaic system. The electrical power may be stored by a battery, from which it may be drawn to drive a lighting element to emit illuminating light. The illuminating light may be received and converted by the color conversion optic into a converted light, providing illumination in a desired wavelength range. The color conversion optic may be positionable adjacent to the photovoltaic system or the lighting element to convert light. A controller may be included to control the color conversion operation. The controller may be connected to a sensor or a timer.