Review on Nilight Charger Voltmeter Stickers Warranty by Ricardo Tlaxcalteca

Great product, especially for the money. The voltmeter is rounded down to 0.1, the build includes detailed instructions for connecting the rocker switches to what they power and to the main power supply. It came with some pretty rocker stickers. Be sure to connect this device to the auxiliary side of the circuit and not directly to the battery unless you are using a toggle switch as an emergency switch.