Battery:

ARC Li-ion Battery Pack
Barely larger than a deck of cards and weighing just 320g (less than 10 oz!), but putting out an amazing 11.1 volts the rechargeable Lithium Ion battery powers the ARC Li-ion for 3.5 hours, yet is so compact and light that you’ll hardly know it’s attached to your frame or stowed in your jersey pocket.

Mounting:

The ARC Li-ion comes with both a oversized (25.8-31.8) compatible bar mount as well as our super adjustable and rugged Cabeza (helmet) mount as standard- Forget about the debate about which is best; helmet or handlebar mount? Decide for yourself. It is as easy as removing a screw and switching mounts. Both our helmet and handlebar mounts also feature our neat break-away disks which means even if you don’t see that low hanging branch, or nasty rut your light head won’t take the punishment. Multi adjustable and simple our mounts let you put the light where you need it and keep it there.

Power Settings:

Two output levels provide multiple burn times. Start up the ARC Li-ion by double clicking the new more positive power button on the rear of the light. The light comes on in the full power mode; putting out a jaw dropping 675 lumens of clean, daylight balanced light and giving you 3.5 hours of run time. Press the button again for low power and the slow flashing LED confirms the low setting for 4 hours of a still incredible 550 lumens of even light output.

Beam:

The Light & Motion ARC Li-ion uses a proprietary peened aluminum reflector to ensure a super clean, even beam pattern with no jagged edges or dark spots. While others are satisfied to use integrated lamps and reflectors originally designed for movie projectors, we spared no expense to give your eyes the best quality light available. Whether you mount the ARC Li-ion on your head or bar, the bright center spot and clean fill light will give you the confidence to ride any trail, or road at speed and with complete confidence.

"The lights are the greatest thing I think I have ever used.
They are flat amazing!”
- Cameron Chambers
2005 US National Solo Champion

Are you a serious 24hr competitor? Or do you just need the brightest, whitest light available for your local night ride? Now you don’t need to drag around a heavy old battery. There’s a new king of the jungle in HID lighting systems. The ARC Li-ion turns night into day and its super light; super compact, 300g Lithium Ion battery pack allows you to ride further and faster. The ARC Li-ion’s High Intensity Discharge (HID) lamp provides 13.5 watts of intense natural light that is 3 times brighter than comparable halogen systems. A feather weight battery, multiple output levels, low battery warning and auto shutoff are just a few features that make the ARC Li-ion the new king...

Reserve Mode/Shutoff:

Batteries don't like to be fully drained (who does?). The ARC Li-ion has a built in low battery warning LED that gives the user feedback of when the battery has approximately 5 minutes left of run time. Further warning occurs when the light output dims significantly at exactly 1 minute before the system turns off automatically. Shutdown occurs to prevent battery deep discharge and maintain the overall life of the battery. Tech note: HID lamps use a ballast. Some manufacturers’ state that the ballast shuts off before the battery would be damaged. However, our tests show that the ballast will continue to light the lamp below the recommended battery shutoff voltage and that shutoff circuitry is necessary to protect the battery from deep discharge.