The Actik Core comes with a 1250 mAh Petzl Core battery. If your excursion requires more power than the battery can hold, grab along three AAA batteries (not included in the price) and switch to using them on the flight. The lifetime of the Core battery is estimated to save 900 AAA batteries. Use the separately available [Bike Plate 2 adapter](/bike-adapt-palte-2) and [Adapter Kit](/adapter-kit-tikka-zipka) to mount this helmet on your bicycle's handlebar or bicycle helmet. Climbing helmets, work safety helmets and skate style bicycle helmets have their [own adapter plate](/mountplate-helmet-adapter/). Updated model: 25 lumens of extra power, and with ample recycled materials. Battery run time chart as extra image. The upper part refers to use of the Core battery, the lower part to using AAA cells. - Three power settings for white light - One power setting for night vision-saving red light - as a bonus, the red light does not attract insects - The red light can also be used as a st