The energy is now provided through lithium-ion cells, and there is a handy new charging status display. It is still super lightweight (165g), uses a Xtreme Power LED which is capable of providing 300 lumens of luminous flux on Boost mode. That translates to huge amounts of light, enough to light up the darkest situations. On low setting, it can last for 60 hours, and on high, 14 hours.
Thanks to the high end power LED, the H7 can last for for 60 hours on low power, 12 hours on high power, and has a Boost, It's not only brighter, it's also longer-lasting and better designed than it's predecessor. Now it's even more ergonomic and lightweight (165g), so you won't even notice that you're wearing it. The H7.2 uses 4 AAA batteries to run.