Sci-Fi Lasers SF502b 445 3W BEAST

[ThePhotonist]

So I decided that I needed something a little more beefy than my laserbtb HL 1W. I'd heard good things about sci-fi lasers so I ordered a 502b. Unfortunately, the first laser was lost in the mail but Eitan sent another one via EMS right away. I was very pleased with his response time. It took about a week for the laser to arrive and all questions regarding shipping were answered quickly and thoroughly. When the laser initially arrived, it had no damage to the host. Initially, I was not able to get the lens to work, but after fiddling around a bit it worked fine and continues to do so. The power on this thing is INSANE. I have a 1.2W 445 and it doesn't even come close to what I got from Sci-Fi. The beam is easily visible even in the daytime and looks wicked (shudders) at night. I am using eFest Li-Mg batteries to power this laser, as the current draw at this power can be too much for standard Li-Ion batteries like Ultrafires. As far as burning power goes, this thing will ignite almost anything I put it to. Wood, plastic, paper products of any kind, all ignite, not smoke, ignite. I'm incredibly satisfied with this product and will be buying from Eitan again so I will let you know how my next purchase goes. I have included in the pictures 2 shots comparing it to my 1.2W HL445 from laserbtb, just so you can see the difference

 

[Ricker]

Glad to hear bud, that looks like one bad ass beast! How's the divergence? And what's the "dot" look like? How about the duty cycle on that badboy?

 

[ThePhotonist]

There is a lot of divergence, pretty much what you would expect from a diode of this power at this wavelength, but it certainly makes up for that with raw power and the lens does focus well. I tried to take a picture of the dot but it just doesn't show it's shape on my crappy iPhone camera. Duty cycle is 60 on 60 off, but honestly I feel like it could handle more.

 

[GSS]

Love it, im all jealous but in the last pic that beauty is awfully close to the end of the table

 

[Pman]

Some REP to get you rolling.
How much larger is this than the intended 501b?