The design and fabrication of this LED based lighting system took approximately 6 months from start to finish. As you may have read already, the goal was to match the light output of a 32 watt T8 fluorescent lamp while using significantly less energy. This is an ambitious task because T8 fluorescent lamps are the more efficient flavour of this technology. LED Tube that were designed are intended to run on sealed lead-acid batteries which means they can accept an input voltage of anywhere from 10.5 V to 13.5 V. This input voltage was chosen to make LED Tube compatible with solar or wind energy systems. This means that if your home or building is operating on solar or wind energy, you can connect LED Tube directly to the batteries and bypass the inverter. This allows you to purchase a smaller inverter and requires you to have less solar panels (due to the energy loss when converting from 12 VDC to 120 VAC). LED Light Direct is your online LED Products superstore. We carry the leading LED Light from the leading LED Light manufacturers, including LED Fluorescent Lamp, LED Ceiling Lights, LED Tube, LED Display. LED Light Direct also carries a complete selection of LED Display (Indoor LED Display,Outdoor LED Display) and LED Light accessories, including LED Light Accessories, LED Street Lamp, LED Neon Light, LED Tube, LED Tube Light, LED Flashlight, High Power Flashlight, Aluminum LED Flashlight, Solar Flashlight,Power LED PAR Lamp, LED Lamp and more.