C3 - EyeSafe (5mW 520nm)

Requires 1x 14500 3.7v button top, unprotected cell. (not included) 
No reverse polarity protection. (INSERTING BATTERY BACKWARDS WILL DAMAGE DRIVER)
Continuous duty cycle.
Focusable acrylic lens installed.
Measures: 100mm  x 21mm  x 21mm
Weight: 97g without battery, 117g with battery.
Single mode driver.
Stainless steel body.
Lifetime warranty