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I may be mistaken, but doesn't a larger dia lens inherently offer better divergence with a larger output beam? The lens looks like the output of those "fat beam" laser modules on ebay. Could be completely wrong though.

Quite important especially in builds using a high current draw. Another area to be cleaned are electrical contact points like threads and partially anodized / coated caps etc. Can make a huge difference in output like a bad switch. A nice fine sandpaper or scotchbrite pad are great at this task.

any pics of the lens itself?

NP🍺

If it uses a standard adapter the center pin should be the positive. It is 99.999% of the times. Just watch the voltage and dont exceed whatever the original was.

Havent seen many boost boards using an opamp outside of current control feedback on a CV IC. But if thats the only chip, you'll be fine with an input voltage of 4.2V, just dont exceed that like using 2 batteries or you risk blowing both the driver AND diode. -Industry-Standard Dual Operational...

3r3 is the inductor, id need the tiny code on the chip with 6 - 8 legs, possibly more legs. If its meant for a li ion then typically 4.2v will be fine as most cells are 3.7v nominal but 4.25 fully charged

do you have a link to the driver or a number on the IC?

https://www.18650batterystore.com/en-ca/products/samsung-25r-18650

I dont see the driver pulling much more than 2 -2.5A. Aside that, the rating is what the battery is capable of in terms of current. As long as it meets the voltage criteria,, it wont make any difference. 🍺

Thanks for the input guys. Think i'll wait on buying one of the "yellow" lasers until the price drops out some. I looked around some more and found the modules that they use in these square block units. Pricing wasnt much cheaper if not more expensive. Also seeing 545nm modules on alibaba...

"degradation"? Do they burn out quickly? What was the issue?

Scrolling through ebay looking for any new stuff and found these...

Nice driver. For the DIY minded and basic control ive seen a simple circuit adopted for TEC similar to the below pic. Beefier components and a failsafe is a good idea, but it wont heat only cool. Quite responsive though.

Im wondering if its a G2 :rolleyes:

I'm going to check out the 0C when I have a few spare bucks. Those lighter blues are such a nice color 🍺

Id much rather get 8 - 10 for the price of two. Are the 07's from a hybrid LED laser projector or one of those laser projectors? I'd imagine thats where the greens are coming from, would that be a correct assumption?

I see. What about the 465nm blocks? Any idea which device they come from? I bought a couple from china but they turned out to be heavily used, both with low output and distorted beams. So far I have harvested from a V2, V10X, and a clean pin block of 08's from an ebay sale. Im really liking...

I wonder what the difference is by rated lumen output? Any idea what block is in the v110W? Or did they slip in a blue LED? 8 LD's V2 - 3000 L 10 LD'sv10X -3,300 L ? v110W - 3,500 L

Scored another projector cheap, though like the picture so much I dont want to take it apart lol What is the difference between the v and f series? all the same LD's with different features as projectors? So many different models, its quite crazy 👀