Hi! I bought an M21H with XPG70.3, I’m not very happy with the power, the driver only has 5A, so I want to install the GT FC40, will the driver from the M21F be suitable? I want to put the XPG70.3 in another host instead of the GT FC40, will the reflector from the GT FC40 fit the XPG70.3? And is there a driver for GT FC40 on 4A?
hi ,XHP70.3 ,input 6V 5A
GT FC40 ,input 12V 2.5A
The small size of the M21H means that its heat dissipation capacity is also extremely limited. Even if a 12V 4A driver circuit is installed, the heat is still very large. This assumption makes little sense.
The M21H is a flashlight equipped with a TIR lens, which is suitable for medium or close range lighting. I’m guessing you need a flashlight for long range lighting. You may consider other flashlights with larger head diameters.
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I have an M21B with GT FC40, I need something more powerful, I thought that the m21h with 70.3 would be brighter - but I didn’t guess 
Maybe take host m21c and put GT FC40 there? Is there a driver 12 to 4A?
Only L6 GT FC40 uses 12V 4A driver
And in M21G 2.5A?
12V 4A in M21G
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Ive seen several bigfoot documentaries so if I may:
Check out how much the ring around the lens sticks out from the main bit, visible on the right one
And then notice how on the left it’s a straight line right from the back of the main part to the end of that ring
It makes it look from this angle like you’re looking at a distance from the back of the housing to the opposite face, but you’re actually looking at the distance from the back to the edge of the ring around that lens. The actual front face of the housing is further back, it doesn’t extend that far forward.
But who knows, you wouldn’t be able to tell from a picture that the D1k weighs less than the d1v2.
I think that looks great btw 
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Hmm…
Maybe I should wait until this new headlight is available before making a decision.
I was going to order the H3 on 11/11, but now I’m not so sure. 
Yeah, It has a sort of industrial with high tech look to it. Maybe it is the bare AL finish. Though who know what the finished product will look like.
Is this a 21700 light and I missed it? Anyway, you may be waiting a while for it to be available… If there is a good deal on the H3 for11/11… I say go for it… 
Please let this be a buck driver, or at least has the option. It would be my first proper headlamp. I’m currently using a Boruit D10 modded with 519A and TIR optic and I’m getting tired of its low efficiency unregulated driver and having to constantly replace batteries.
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Hi! Simon, do you have 3500k LED besides 519A?
3000 is too yellow and 4000 is too white
Nichia 219b SW35 or you could try to dedome a 519A 4500K or a 519A 5000K too.
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Sliced or dedomed 519A works too, FBsLights did a test of sliced and dedomed 519As here.
If you don’t mind the green tint, there’s the LH351D 3500K.
That new headlamp might work well with a 519A and SST0-20 Deep Red.
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Hi! I missed it, when will the sft40 3000k be available from Simon?
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He had listed the 3000K and 5000K on his aliexpress store. The 3000K seemingly sold out fast, but now the listing seems to be gone all together. I was planning on getting a 5000K with my next order.
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JL has some SFT40 5000K available, mine just arrived today:
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Can you measure the Duv when you get it installed? I’ve seen some beamshots that make it look pretty neutral, but I don’t remember seeing anyone actually measure one.
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I’m getting ready to reflow it now but I won’t have time to install it tonight.
I have an Opple 3 and will test it and let you know.
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Hi! LMP LML2AW.DC 4000K has arrived. Super! Pink tint, pure white, compared to XHP50.3 HI R9050 - more yellow and green tint, I’m upset. Is the XHP50.3 R70 also disgustingly green?
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