True Utility SolarLite Multi-Tool Solar Powered LED Key Ring Flashlight, easily attatches to your key ring for quick and easy access Produces a powerful 46 lumens and 1.75 Watt light output Operated by 3 bright white LEDS Fully rechargeable button cell battery included Measures 2.2 x 1.1 x 0.4 in.; weighs 1.3 oz.