This is the perfect do-it-yourself solar kit for small applications or for solar experimenting. The 5 watt solar panel charges the small 12V 1.2AH sealed battery (SLA). Kit includes 5 Watt framed solar panel, battery, charge controller, fuse holder, female lighter socket and wiring. Comes with easy assembly instructions. Keep in a sunny location during the day and use whenever you need power for LED lighting and other small charging needs like cell phones, pda's, iPod, AA/AAA chargers. Our 12V LED GeoBulb uses 2 watts or 30mA. Example: In 5 hours of sun, .29A (solar panel current) X 5 hrs = 1.45 amp-hours per day X 12V = about 17 watt-hours per day of solar energy to use. You could power the bulb for over 40 hours in one day of sun! Even when completely drained, the small battery will fill up in about 4 hours of sun. Depending on market availability, we may occasionally substitute a solar panel of equal specifications to the solar panel shown above.