Captures energy from regular indoor lightingRechargeable energy cells are made from recyclable nickel metal hydride technologyLumeCell is the cleanest, greenest, most environmentally friendly energy source100% recyclable and eliminates the need to manufacture, use and dispose of ordinary alkaline batteriesThe revolutionary green energy source is self-powered and guaranteed to run automatically for yearsFeatures LCD display with scent replacement indicatorEasy and flexible programming allows for maximum cost controlSelf-powered design reduces the need for maintenance