Dynamite offers a wide variety of Dyna-Glow glow drivers, so make sure you choose the right model for you. For power, you can choose a version that uses either a “C” or “D”-size alkaline battery or a Ni-Cd version that includes a Sanyo sub-C battery and is available with or without an overnight wall charger. The Metered Locking glow drivers let you easily see if the Dyna-Glow is drawing a current when attached to the glow plug.Each Dyna-Glow glow driver features a durable red-anodized aluminum case. The Sure-Lock glow plug attachment secures the Dyna-Glow around the body of the glow plug for hands-free starting. The contoured Comfort-Grip finger clip makes installing and removing the Dyna-Glow easy and virtually slipproof.