It is hard to say enough about the quality, performance, and value of this flashlight. It shares the same basic patented design and uses the same batteries and charger as the 8NX. What's different is its premium aluminum construction, with full hard anodized finish and the use of optically coated tempered Pyrex for the window in the bezel. The 8AX000 is the flashlight only (no charger) and comes with one B90 rechargeable battery which gives 110 lumens of light for 50 minutes. The 8AX light is also sold as part of a complete system: the 8AX415, which comes with two B90 batteries, the rapid/smart AC/DC charger, and a DC auto adapter.