Nichia NVSU233a Flashlight Build

Flashlight Modding and DIY Parts
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Quick and simple. I had been wanting a nice and powerful UV flashlight in the 365nm region (not the cheapo 395nm - 405nm). It needed to have a nice even flood spill. I haven’t seen enough build threads using this LED, so I thought I would contribute. This forum is where I actually found a lot of useful information, so I thought I would give back.

So here we go. Nichia NVSU233a 365nm UV LED. I’m sure you can figure out where I got it. Flow soldered to MCPCB and then to the brass pill.

1050mA NANJG AK47 driver. The brim was filed down of excess solder so not to cause any interference after the picture was taken.

Mounted in a UF-T20 zoomie host that seemed to take forever to get in stock. I know the LED looks dirty — I cleaned the LED with rubbing alcohol after this shot.

Installed in host with unnecessary gasket.

LED closeup through the aspheric lens.

LED powered on low, taken through amber UV safety glasses — hence the green tint.


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Welcome to BLF, MrBaz!

I think it is a great build but Photobucket does not let me see the pictures yet.

Edit: thanks TM, I can see the pictures now. Very nice build, this will get you your 365nm light in faraway places :slight_smile:

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Welcome to BLF!

It is an interesting idea to use a fairly decent zoomie.
looks like it is working great!

Djozz, delete all after the first .html and the pics can be seen

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Sorry that took a while to get the pictures to show. At least I figured it out!

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Here are some beamshots:

Baseline lighting at my desk:

395nm Amazon flashlight (50 something LEDs crammed together):

Nichia 365nm even flood:

Nichia focused onto the cones/box:

Die image:

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I like the die image shot! :slight_smile:

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It is pretty interesting. Different from normal LED die shapes.

If the NVSU333a would comes down in price, I’d love to put one in a UF-1405. You should be able to flow one onto a XHP-70 sinkpad with a perfect fit.

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That is really cool.
How’d you get the MCPCB centered when you flowed it to the pill?

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A little bit of experience ‘eyeing’ things in place coupled with a good dose of luck. If I were to do it again (or another flashlight where the MCPCB doesn’t quite match the pill), I would 3D print an alignment spacer.

10

Nice build. Based on your beamshots it looks like the aspheric lens is not attenuating the UV.

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The host uses an uncoated glass aspheric, so there should be no attenuation.

12

Very nice!

I’ve looking for Nichia119 two foot print mcpcb. Now I find it!

Anyway groupgets can sell only mcpcb??

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This is a 233a, not a 119.

You would have to email the guy in charge of the Nichia groupget to see if they would sell the MCPCB separately.

14

Sweet build MrBaz. Congrats.

How may 7135’s do you have on your driver?

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