Indoor Light Series Electronic Solar Panels PowerFilm Indoor Light Series Electronic Solar Panels are designed for developing remote power solutions in low light and indoor applications. The Light Series of solar panels and cells are optimized to harvest artificial indoor light instead of sunlight. Additionally, they can provide energy collection at light levels as low as 200 lux, making them useful for almost any indoor environment. These panels are ideal for integrating ultra-low-power wireless devices, sensors, and electronics.