Mod: Small Sun ZY-T08 Emitter Upgrade - MT-G2. Now you can call it a Small Sun

Updates:
July 29: Updated the build to a DRY driver and put the emitter on a Noctigon. The build is basically the same, output numbers have improved.

great idea!

I can’t wait to see/hear what the beam is like.

fyi, i did some testing of the 3-18V driver.

Mine didn’t not have a problem w/ low voltage warning on 1 cell, but some component in it couldn’t handle the power and started to smoke. I suspect it would work if I potted it.

Probably doesn’t matter to you at this point…but if anyone else wants to see those results they are in the seller’s torchlite svd7 thread.

Crap! I want to see this! Just posted yesterday, thinking the T08 would make a nice host for this LED in the MT-G2 group buy thread, I got the LED, got another T08 on order.

Wouldn’t using T13 be easier? It’s already in series, 8.4V, but similar head and reflector. No need to mod that.

Heck, you might even use T13’s stock driver with only resistor. As far as I know it will buck voltage to match amperage, so 6.0V should be easy to get from its 8.4V supply.

Anyhow, looking forward to see the MT-G beamshot. :slight_smile:

Hehe, your comment was the kick that got me to finally post it. :wink:

Yeah, the T13 would be easier, and you might get the stock driver to do it too. I do not have one though.
Also, I wanted a (jacket) pocketable flood light with some throw left over in a massive spot. Worked out perfectly for me.

nice mouseover beamshot!

I’m really loving these MTG2s. very usable beam…

psst… i’ll trade you for one of my T13 :smiley:

OK, you ship the T13 first… then… :stuck_out_tongue:

Now I know not to underestimate beam size - that shot is just impressive.

Very useful - wide beam, wide spill, and the colour reproduction is very good too. Very nice mod, in all. :slight_smile:

Great Mod! Boy that 5000k looks more like 4000k doesn't it? Very yellow/brown looking.

It looks a bit more neutral in person. I consider the tint slightly cooler than a Nichia 219.
This light is very useful. The spot is huge so as a medium range searchlight it works well. It cuts through haze so the beam itself isn’t in the way. The spill is great, nicely even and wide.

Lumens: 1820… WOW! 8)

It looks like you’ve created the perfect compact flood monster. I love your driver mod. How long can you run it on high before it gets to hot or the cells start to sag?

I forgot to add that to the post. The driver has thermal protection, so it steps down after about 5 minutes or so. Without the resistor mod it should go longer.
I will do a thermal test tomorrow and update the post.
This light is very useable on medium, which would run for about two hours.

did you measure the 4.5A at the emitter or is that estimated from power in to driver?

This turned out sweet! Nice mod thread Relic38!

I like it 8)

I recall measuring it, but was a while ago. I may have to do it again to be sure. Another reason to write the post when it is fresh in my mind.

Nicely done relic38, thats yet another mod that I plan to do!

(I knew that I should have bought more than two mtg2’s :frowning: )