how not to dedome

Flashlight Modding and DIY Parts
1

Did a little reading on dedoming, seemed easy enough, thought I would try the “sit it in petrol for a few hours” method on my MT-G2.

After about 2 or 3 hours I thought it would be ready to go and gave the dome a little push with some tweezers. Part of the dome chipped off and I thought it just needed another push. Well I gave it another push and it ripped half the phosphor off. A quick test and sure enough its a puts out a horrible bright blue……

I have another but I’m not sure if I’m in the right state of mind to try again at the moment … might have to go for the slice method next time…

2

Whats your plan with a dedomed MT-G2? Won’t turn a light into a thrower anyway, I guess.

3

Man, this is painful to see. Torturing a MT-G2 like this :rage: I love the MT-G2 because of it’s creamy tint. It’s not a thrower.

With that said I bought a couple of de-domed MT-G2s from a user here who had a web shop. I mean, I liked the MT-G2 so much so I wanted to use it in other types pf lights. I instantly regretted it when I got them. They where no longer singing with that beautiful creamy tint, it was more like coughing and puking out greenish stuff. Poor things.

Then I tried slicing a bit of the dome of one for a slightly tighter beam. Maybe I sliced too much because it also affected tint a little. Nowhere near as much as de-dome, but enough to convince me to leave them be and use other LEDs for more throw. I’m now a strong believer that MT-G2s are best left alone. If you do something to the dome you ruin the very thing that makes them shine.

4

I’m building another spot light. This time with a 100mm aspheric. I don’t want a tiny little spot that illuminates a postage stamp 2km away. I like the mt-g2 in that it’s a much bigger spot.

And it’s all I have lying around ha ha.

5

Try a sliced XHP70.2. It’s the best option for a high output thrower from a single package/emitter.

6

Well, you obviously wanted a smaller spot or you wouldn’t have tortured it like that. Use it by all means, just don’t torture it!

7

Yup, dedomed MT-G2 is a bad idea…
I tried it on my Mag 2D, it turned into a puky yellow green tint with not that much throw… 10 bucks wasted :frowning:

8

this one looks almost UV. it’s crazy. i almost want to put it in something it’s so ridiculous.

…. thinking …. Frankenstein light ….

9

Not UV but quite low in the spectre of visible light. I’ve put a dedome/trashed 219C in a zoomie.
It was fun for 5min but really dazzling to look at the beam.
Anyway, make fun with it :smiley:

10

I will admit… that I always was “curious” what a LatticeBright “angry blue” XML clone did after petrol dedoming… I never had any oopsies doing petrol dedomes on “run of the mill” cree LEDs