Full description not available
S**S
Will light matches when properly focused
Reviewing 2 405nm blue violet laser pointers. These are not my first lasers of this type, but first time using this wavelength, as my others are green 532nm.I was initially disappointed with these as they don't appear as bright as the green lasers, but that's partly due to the perception in the human eye. So, I would recommend green 532nm if you need a more legible beam for astronomy.After letting the included batteries charge, I tinkered with them again, and after making a few adjustments to the focus, I quickly burned the palm of my hand. Grabbed the book of matches I was lighting with my green laser, and low and behold, it not only lit a match, but did so more quickly than the 532nm. The focal length is about 4-6 inches.I recommend wavelengths in this order, first- 532nm, 405nm, and then 630nm, but do not have any red lasers beyond the typical cat toy to advise how effective they are. Package arrived sooner than estimated, and would recommend these for pointers or simple burning experiments. I suspect they are greater than 5mW of power.
K**E
Great lasers, Great store
I purchased the set of two 405 nm lasers. One of them arrived in perfect working order. The other did not work. The store replaced the defective laser with one that works perfectly well! There was no hassle and I received the replacement unit quickly. I use these in education so it is important that they work as needed. I appreciate the seller quickly replacing the unit.
J**B
Don't work
Why would you make someone spend 50 dollars on something that don't work it's disrespectful and I'm reporting you
B**T
Not what was advertised in my book
One does not work and has an awfull oder coming from it. And the other is not bright at all. Not happy at all with the product.
Trustpilot
4 days ago
1 month ago
