The Powerbox Digi-switch is the smallest RC regulator and switch circuit built into one. The entire unit weighs only 15 grams! The regulator can handle a constant 5 amps without a problem making it perfect for ignition systems. It can handle an input voltage of 8.4v (Lithium batteries) and regulates it down to 7.4v. The switch features a unique failsafe system making sure that it cannot be bumped between on and off.