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There's more content to go into this review but I just don't feel like typing up web material right now.

No longer necessary

4 in 1 Star Projector, retail $69.99 Manufactured by (Rossetta), rossettalight.com/ Last updated: 09-20-23 This is the 4 in 1 Star Projector itself. And this is the remote control that comes with it. What we have here is the 4 in 1 Star Projector by Rossetta. Although its primary...

Nope, still no joy. :( Let's try four images: This is the 4 in 1 Star Projector itself. And this is the remote control that comes with it. Green laser "stars". Product deployed for a light show. OK, let's try the full review in a new post sans origin URL (because I now suspect...

I just tried imgbb.com (resized everything to 640x480) and still no joy. :(

Oops! We ran into some problems. A server error occurred. Please try again later. This is what I see (top of the screen; center-justified) when I attempt to post.

Great theory, but that apparently wasn't "it". :cry:

Post will not "take"

See post #9: this issue has been rectified (resolved; not converted from AC to DC)

Violet 405nm Directly-Injected Diode Laser Pen, retail $1.99 Manufactured by (unknown) This is a 405nm (visually estimated at 406nm) violet directly-injected laser pen. Design power output is unknown, but actual power output appears to be between 35mW and 55mW. It is made primarily from...

BTTT: Added a photograph of the laser's beam bouncing off a standard 2nd-surface household mirror at ~5 feet.

Review of the Cyan 488nm Directly-Injected Diode Laser Pen :cool: Review of the Violet 405nm Directly-Injected Diode Laser Pen :D Review of the 4 in 1 Star Projector :)

Cyan 488nm Directly-Injected Diode Laser Pen, retail $65.00 Manufactured by (unknown) This is a 488nm cyan (greenish-blue) directly-injected diode laser pen that is designed to output approx. 50mW. It is made primarily from brass, covered with what I believe is a black baked enamel finish...

BTTT: Added a photograph of the ornamental brass "badge" that was furnished with the laser.

I looked over the other 31 violet-emitting laser reviews on my website, prices range from 99￠to $1,732.19 (typically in the $10 range) and most of them are way overspec. Most of then were spec'd at 5mW but were in the 15mW to 80mW range.

I'm in a wheelchair after falling prey to a crippling stroke on 03-21-22 and my physical ability to measure with a meter stick is extremely limited at best. (Somebody deleted my last msg. with this content.) I updated my O.P. with this data.

Well, I've got some rotten news. There is insufficient space here in which to perform a wavelength measurement. :cry:

I didn't have the $$$ either; it was sent to me for evaluation on my website. http://www.ledmuseum.net/tenth/sonar.htm

I remember my first violet laser in 2007 was a Wicked Lasers Sonar; it gave me 11.6mW pulsed (1.93mW avg.) at a cost of 11,608.3 CNY ($1,732.19) in 2010 dollars.

I snagged a violet laser pen from Ebay not long ago; it is very over spec. Looks like ~45mW at ~410nm, and it cost me $2.16 including shipping. It is published to have an output of 1mW. Here is their Ebay shop. I no longer own or have access to a spectrometer or a LPM so I have to "eyeball"...