The Explorer 13.5, 21 W focusable HID

Burntime: approx. 6.5 hours, comes with a NiMH battery pack,
locking latches,
stainless steel fittings,
charger,
hands-free Goodman handle,
Depthrated to 500ft.

NiMh batteries provide more than 50% greater energy density than lead-acid and allow light cannisters to be a fraction of the size of conventional dive lights. Cannisters are milled from a solid rod of Delrin.