We should have surveillance cameras in public places because they ensure public safety. ... Through surveillance cameras, the police can both prevent crimes from happening and can quickly solve criminal cases with material evidence. In addition, surveillance cameras protect against property theft, and vandalism

Minggu, 15 Oktober 2017

Only US $104.75 450nm 15000mW 12V Laser Module TTL Adjustable Focus DIY Laser Cutter engraver accessories 15W laser






450nm 15000mW 12V Laser Module TTL Adjustable Focus DIY Laser Cutter engraver accessories 15W laser

[32800881498] Free Shipping 450nm 15000mW 12V High Power TTL Adjustable Focus Blue Laser Module DIY Laser engraver accessories 15W laser head Pulse Power 15W, 450nm laser module (send glasses , power supply as free) Specifications: Main dimensions: length 40 mm * 40 mm * 100 mm Wavelength: 445nm / 450nm Output Power: 15 W pulsed, 8 W average Modulation frequency: ttl can be modulated, 0v-off, 5 open, switching frequency <9 kHz Operating voltage: DC = 12 Operating Current: I <3A Focal length: not regulated Operating Temperature: 15 ℃ ~ 45 ℃ ​ (please remark USplug or EU plug, without remark we will send US plug) Please know that this laser can not Cut plywood or Engrave on metal.  


US $361.20

Limited Time 71%  US $104.75


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