How hard, MT-G2 in Olight M20

[hippy]

I've never modified an LED light before.

I have an Olight M20 Warrior with the XP-G R5 LED. By today's standards it is rather weak. would the dirver circuit be capable of driving a Cree MT-G2?

I like the form factor of the M20 and I like the idea of the larger spot and warmer output of the MT-G2. I'm particularly interested in a MT-G2 in the 3500-4000K CCT and the higher CRI the better in my opinion.

Thoughts?

Thanks.
Rich

 

[mattheww50]

Short answer is NO. The XP-G typically has a Vf on the order of 2.9 Volts. MT-G2's come in three flavors, 6V, 9V and 12V. There is no way a 3 volt driver is going to run a 6 V MT-G2, so if you want to use an MT-G2, you are going to have to replace the driver. This leads the next issue. The MT-G2 can be driven hard, you are probably going to be limited to something on the order of 1500lumens from the MT-G2 simply because of what the battery can deliver, but that also raises the required heat dissipation from a few watts to about 15 watts for the LED. That means you will need a much better thermal path, and a much better heat sink that were needed for the XP-G. It also means your flashlight is likely to get very warm, very quickly. In simple terms, what you want to do is anything BUT simple.

 

[DellSuperman]

A better alternative would be a XPL emitter. It has the same footprint, slightly larger die (floodier beam) and same working voltage.
The beam wouldn't be as floody as the MTG2 though

 

[hippy]

Matheww50 and DellSuperman, thank you. Saved me a bit of research. I'll look into the XM-L, looks like it would be flooder with the 5x5mm die size compared to the XPG 3.45x3.45 and it's offered in high cri bins as well as having a better output of 1040lm versus the XPGs 493lm peak. i was just hoping to do a "super flood" as I'm in that phase of my flashaholic-ism.

Shame I can't find one of the Olight drop in XML module, wonder if there are any XMLAWT-00-0000-000HT40E5 available anymore.

 

[ch4ins4w]

Along these lines, I am planning to replace the XML emitter in my Olight M22 Warrior. I like the driver and hope that putting an XPL V6 in it will give it a little more throw and still a nice spill for all around use. The XML in it now is mounted on about a 22mm copper screwed to the heat sink. I hope I can make a 20mm XLP from Mt Electronics fit with the screw holes now in place.

 

[DellSuperman]

Matheww50 and DellSuperman, thank you. Saved me a bit of research. I'll look into the XM-L, looks like it would be flooder with the 5x5mm die size compared to the XPG 3.45x3.45 and it's offered in high cri bins as well as having a better output of 1040lm versus the XPGs 493lm peak. i was just hoping to do a "super flood" as I'm in that phase of my flashaholic-ism.

Shame I can't find one of the Olight drop in XML module, wonder if there are any XMLAWT-00-0000-000HT40E5 available anymore.

Like i mention, u should consider the XPL emitter. It has the same die as the XML but with the same footprint size of XP-G emitter.

Plus i am not sure the reflector of your light can fit the XM-L

 

[hippy]

Like i mention, u should consider the XPL emitter. It has the same die as the XML but with the same footprint size of XP-G emitter.

Plus i am not sure the reflector of your light can fit the XM-L

I ordered an XP-L Neutral White, going to be a couple weeks to come in.

In the mean time also ordered some XM-L2s to play with, T6 4C and T6 5C1. Those should arrive in a week.
At least it give me some stuff to play with.

So I can see it side by side myself and might help someone else, cree's calculated numbers @ 1500ma 85C:
Origianl XPG R5 380lm (1500 ma 25C)
Cree XPL V3 568lm
Cree XML2 T6 541lm