This blue laser pointer is one of our best products with high power and high practicality. The 445nm blue laser beam is powerful and long-range, which can burn things quickly. One 21700 battery can power it; you don't need to worry about overvoltage. Multi-mode, circuit protection, and adjustable focus are available. If you are looking for a durable and powerful handy laser pointer, this is a recommended choice.

Packaging Type
1) Without accessories: only one blue laser pointer
2) Standard packaging: 4000mW laser pointer + one 21700 battery + charger
3) Professional packaging: 4W laser pointer + two 21700 batteries + professional charger + five pattern heads

Specifications
• Output power: 4000mW (4W)
• Wavelength: 445nm (blue)
• Useful life: > 8000 hours
• Laser divergence: < 2.0mRad
• Focus mode: adjustable focus
• Electronic protection: PCB protection, reverse polarity protection
• Multi-mode: low power, high power, strobe
• Laser class: class 4
• Waterproof rating: IPX4
• Housing material: aluminum alloy
• Surface color: black, silver, grey
• Operating voltage: DC 3.7V
• Operating temperature: -10°C - 60°C
• Switch: stay-on switch at the bottom
• Power supply: 1 x 21700 battery
• Net weight: 218 g
• Dimensions: 190mm x 25mm

How to operate the output modes
1) Please turn on the laser, then the laser will work with low power. If you half-press the bottom button once, the output mode will be high power.
2) After the laser is on, please half-press the bottom button two times within 1-2 seconds, then the laser will work with the strobe mode.