Interest Thread; Malkoff M61 New 519A 4500k / 5700k 9080 *Group Buy 2022!*

kerneldrop

kerneldrop

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Malkoff gonna hang up on whoever calls and asks about dedoming an LED. haha
 
neutralwhite

neutralwhite

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awaiting a response from Craig at Illumn.
just messaged him again.
de-dome for me too.
 
KITROBASKIN

KITROBASKIN

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Last Saturday received from FastTech: 519a 4500K R9080 in an S2+ and C8+ flashlights that are stunning in terms of reflector/lens quality (though not sure if anti-reflective coated) and overall value. The emitter in the S2+, under white wall scrutiny, has a slight off-cast yellow-brown dimming in the center of the hotspot though it is invisible in practical use. I will dedome that critter after learning how to do it with an S2 host. The C8+ has the throw we need for our terrain.

Beautiful light coming from them, certainly comparable with the best Nichia and Luminus SST20 (which I did using a pure white (titanium dioxide pigment only) ceiling. I compared them to full sunlight early afternoon; color rendering on wife's skin was pleasing, adding a little more red than the sun at that time. More usage will reveal more understanding.

Maybe Craig will offer different color temperature options? I would like to try the next step cooler than 4500K and possibly dedome it. These eyes see that the 4500K is not yellow at all; really nice.
 
kerneldrop

kerneldrop

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I ordered a couple C8+ the other day.
Not sure what LED I’ll go with.
I have some orange peel and smooth reflectors for them.
 
kerneldrop

kerneldrop

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I will dedome that critter after learning how to do it with an S2 host. The C8+ has the throw we need for our terrain.

Here’s a C8+ I just threw together.
MTN-17DDm fet driver
3500K 519a domed (we’re going to the gulf coast so I wanted warm)
  • Mode Levels: Moonlight - 2% - 5% - 20% - 50% - 100%

8B4A62BB AEBF 485B B0B6 EA026356899E
B7C795BF 1F78 4DAF B978 6BB308E1D9E2
2C1F7B78 A528 49AC 8377 47815FC2C621
 
Last edited:
D

Duster1671

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I think I would want a dedomed 519a. It seems to really help this LED in terms of throw and tint uniformity. The trouble is that if you mess it up in a Malkoff drop-in you're out $60+. With a light that's repairable you're only out the cost of a new LED.

An HDS Rotary with dedomed 4500K 519a might be my most wanted light right now, but it's another one where the maker probably isn't interested and the stakes are high doing it myself.
 
J

jon_slider

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I will dedome that critter after learning how to do it with an S2 host.
Congrats on your new 519a lights.. Glad your first impressions are good.

Here is a video showing how to dedome:

the trick is to get the LED hot before pushing the dome off, as this causes the adhesive to release more easily.

sometimes there is a bit of stray dome bits left behind.. they can also be pushed off as there is a layer of glass protecting the phosphor, there is little risk of ruining the LED
 

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