A very quick and dirty throw test has the MT03 pulling ahead in throw by about 24% vs the MT07S.
This is to be expected, even with multi led setups the larger total reflector size is still going to generally throw further. Plus the XHP35 is a much better thrower.
Now with a dedome the MT07S should be on par or possibly even slightly ahead.
Ok, starting work on Keepitsharp’s V1 MT03. I have to agree the V1 is a step up in quality, the ano appears to be HAIII and it just feels a step up.
Before measurements with the stock xhp70 (not70.2) was 11k lumens.
I also realized this is my last 70.2 driver for the moment. I already have the components for 30 more here and the PCB’s are supposed to arrive early next week. So it should work out well with the next batch from Terry that should be arriving about the same time.
Thank you! Looking forward to the* after *numbers! This light was an early pre-order and some of the first had a few flaws. They did try hard to put a good product out.
Yes, as soon as I opened it up I noticed said flaws. Not major but existent none the less.
The biggest of which is the too short battery tube, obviously you have to be careful to get good contact with the cells but not crush them.
Ok, I just finished it up, and final numbers with 4000k 80cri LED’s, TA driver and bypasses are just under ~21k lumens, much improved from the factory setup for sure!
I think the slightly lower numbers are from the very subpar solder used on the mcpcb connection, I tried to clean it up but it has a lot of flux mixed in and I would of had to completely strip the mcpcb and clean it and then redo it from scratch to make any real improvements.
I did not figure it was worth that much hassle for a few hundred lumens but if you want me to I can do it.
Thanks… i knew already this mt07s was under driven from the factory. I have single xhp70.2 light but max output is 6700 lumen… this is a game changer… i cant wait to try it out…
Although you can also really see the efficiency drop off pushing it to that level. The 50% top of the ramp mod was doing almost 7500 lumens and going to 100% turbo only bumped it up to 10k but it sure got hot faster!
Needless to say I would only use turbo for short bursts as it is just a lot of extra stress for not much gain.
Now, with better cells, like 20700/21700 cells and lower resistance contacts, do you think it would be possible to hit the max lumen output, being about 27 000-28 000 lumens?
Further improvement should become reality soon when the 8x18650 tube is available. I think this should have a more positive effect on output than 4x21700.
With the P2 bin emitters there is some room for improvement if you could feed them more power. 25k lumens should be within the realm of possibilities I think.
The 80cri 4000k LED’s are already basically maxed out, I would not want to feed them much more power if I could. They are already being driven very hard indeed.