It's time to get creative with MGG Products! This 3.7V to 6V Flame bulb is the same one used in our Top-Selling Solar Flame Torches. It comes with a single bulb with wires that can be set up to work with a usb power supply or 2 in series from a 12v battery and solar panel, if you wanted to get extra creative why not hide the bulb under some kindling to give your entertaining area a bit of atmosphere without the effort.