Diagnostix™ 3.5v Plug in Rechargeable Battery Handle features:

C sized handle with 1400 maH rechargeable Li-ion battery
CNC machined from solid brass, the handle is chrome plated in black with a ribbed surface for a sure grip
Adtronic electronic rheostatic light intensity control provides infinite continuous control and auto off feature after 2 minutes
Top half of handle unscrews to access wall plug (available in US or Euro fittings)
Li-ion battery provide 2-3 hours continuous use with Xenon, 30 hours use with LED when charged for 24 hours. Up to 1200 charge cycles
Bayonet instrument mount is compatible with all major brands of 3.5v instrument heads
2 year warranty