Sharp High Power Blue laser 1W /Waterproof/focusable

Specification :

1) Wavelength: 445nm+/-10 nm

2) Working voltage: DC 3.7-4.2V

3)Output power:>800mW

4) Laser shape: Dot

5) Dimensions: 20.0 &29.5 mm(dia.) x144 (L) mm

7)Click on-off button

8)Operation temperature range: 20°C-35°C

9)Storage temperature:-10°C-50°C

18650 lithium battery and charger, belt bag included

note :battery "+" towards tail cap ,battery "-" towards inside

If you need it comes with diffraction caps

Pls go to this link to buy

http://www.o-like.com/index.php?main_page=product_info&cPath=55&products_id=127