?Product description?: Model: 303 Material: Duralumin Surface treatment: anodic oxidation treatment Switch mode: ignition knob switch Battery: rechargeable battery Green light wavelength: 532nm Starting time: ? 0.001 seconds Operating voltage: DC3.7V with switch protection Size: 22mmX158mm?Product advantage?: 1. Made of aerospace aluminum alloy, sturdy and durable

2. Using the child safety lock, you can turn the key switch to the red dot and pull it out to cut off the power when not in use

3. Easy to adjust external focus, beam thickness and size of point

4. Imported LD and accessories to extend service life

5.18650 battery, large capacity, long battery life

6. The front panel switch can be opened by pressing once and closed by loosening, which is easy to use

7. Built-in laser module improves heat dissipation, circuit collection and protection design of the equipment