638nm Lasers Reviews

(5)

Displaying 1 to 5 (of 5 reviews)

Pure Copper Made Powerful Handheld Laser Pointer

The output is very nice, nice visible beam profile, focusable and although I wish it were higher mw

Date Added: 2019-03-27 02:33:40

638nm 6600mW Orange-red Laser Pointer Waterproof Diving Signal Light Flashlight

I bought the 638nm 6600mw red laser to add to my collection it really performs great. The beam is ve

Date Added: 2019-03-27 02:27:16

2000mw 3000mw 4000mw 638nm Red Laser Pointer Adjustable Focus Mini Flashlight

Hi, I got my intact package yesterday. After testing it out, the brightness is more than my expectat

Date Added: 2018-06-30 07:23:02

15000mW 450nm World's Shortest Copper Made Powerful Handheld Laser Pointer with Single and Multi-operation Mode

I just received my laser and it's fantastic! The build quality is down right perfect and the burning

Date Added: 2018-06-30 06:37:42

405/450/488/510/530/638nm Waterproof Laser Pointer 5 Meters Underwater

You defiantly get what you pay for. Bought it as a gift for my father he likes it. The effect of the

Date Added: 2018-07-12 07:18:56

Blue lasers are actually the same type of lasers that are used in Blu-ray technology. Although it is rarely prefered to the green and red ones, it could be used for what others do, which also reflects the individual unique aesthetic taste. As far as presentation pointers go, it can be a nice change of pace to use a blue laser pointer, but much more powerful blue lasers are also available. However it comes down to all other uses such as pinpointing something on the large screen or on the blackboard.
Green laser pointers are now the world's most popular laser pointers, because the green light than red light 6 times more than red light beam significantly, while the price is much cheaper than the blue and yellow, green laser pointer is simply more powerful than red laser pen. Of course, this also means that green lasers are potentially more dangerous than red lasers. When operating this type of laser, it is important not to point it into anyone's eyes or to point it up in the sky towards any airplanes. It is probably not as much preferred lasers as an astronomy laser pointer, because brighter colors would make an object more visible in the sky.
Red laser pointers are by far the most popular and least expensive type of laser pointer. This is because the wavelength of the red color can be manufactured more easily than that of the other colors in the spectrum, red laser is also the only color that is available in the smallest size of laser pointers. Do remember that red laser light is powerful when it hits a certain object and converges into a point.

About HTPOW

HTPOW Lasers are IR filtered for safety and the output power is measured on each unit individually for a 20-minute continuous period to ensure sustained performance. This high power laser test is done at least 3 times before the laser is shipped to the customer. All lasers are the best quality, the most competitive price. We guarantee all laser pointers products are free shipping, 30-days return policy, 1-year warranty period.