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, 22 Oktober 2017

Take Now US $101.40 Powerful 450nm 15W 5500mW Blue Laser Module DIY Laser Head For CNC Laser Engraving Machine And Lase






Powerful 450nm 15W 5500mW Blue Laser Module DIY Laser Head For CNC Laser Engraving Machine And Lase

[33023921332] Features: This is a 15W Laser module that could give out 450nm blue laser light. Large heat sinks and cooling fan ensure better heat dissipation during work. Support continuous light output working mode and can work for long time. This module comes with power adapter for convenient use. Suitable for industrial laser engraving machine equipment, great for DIY laser engravers. Specifications: Laser Wavelength: 450nm (Blu-ray) Output Power: 15W Working Voltage: 12V DC Working Current: 5A Focal length: 16mm Focal length: can be adjusted Heat dissipation: Fan Driving Mode: External ACC constant current drive AC Adaptor Plug: US AC Adaptor Input Voltage: 100-240V Lens Material: Optical glass with coating Light Form: Dot, adjustable-focus Modulation: TTL PWM Control: Support Packing list 1 *laser head 1 * power supply 1 * power cable  


US $191.32

Grab Now 47%  US $101.40


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