Featuring 40 lumens of reliable light, the Black Diamond Ion Keychain Light is at the ready & clipped to your car keys with a quick clip carabiner so you can illuminate tricky situations. A twist mechanical lock prevents accidental use to preserve battery life. As well as the full power mode it has a battery-saving low power mode & a strobe for higher visibility at night. The Ion runs on two coin-cell batteries (CR2032
- included) to provide reliable light whenever you need it in a handy, pocket friendly form.