i won the lanyard lottery and bought the farm on the reflector. It’s very minor, I’m nit picking but side by side with my 70.2 MT09R comparison (which has strikingly good reflectors) I expected better...
...then again at one third the price I’m not going to complain and it doesn’t negatively affect anything except light instruments, like 3% or so....
Just came in the mail today and I Love it
Thank You so much M4D M4X you are the Man
I ordered the black XHP35 HI Upgrade version and it was a steal. I will surely use this light the most. Fits in your hand perfectly, has a great UI, Beefy Lanyard and mount. Great on the road light, I drive 2hrs to work every day, just need to find a zip case to keep it in my lunch tote. You guys are going to like this one.
I have a CW 70.2 MT09R and am having TA work his magic with. The Cool White is waaay too blue for me, and now I know the right spec for it's replacements.
The 80CRI is key. I'm a high CRI kinda cat after all. Higher than 70s, anyhow. I really notice the color rendering subtleties.
The driver is FULLY regulated, the output will NOT decrease with depleting cells
Why? Because instead of having a 2S battery pack then bucking that voltage to an XHP70.2 6V forward voltage, it has a 4S battery pack.
Doing this allows for a very large voltage delta with the buck converter meaning with a 6V LED, output will FULLY regulated until the cells are empty, even on turbo if cooled well.
That is only valid for the XHP70.2 version.
At higher output levels, the XHP35HI version will suffer from decreasing brightness.
I’m pretty sure Nicolicous was talking about the 35 version with 12V emitter. In order to have constant max output you need a buck/boost driver, which I don’t think it has.
Maybe vs maybe not, is vs most likely, is confusing me and others here.
I will Email Haikelite and try to get an answer. I do appreciate you bringing that to our attention because this is one of the reasons I purchased this light to begin with,” for longer run times “. I had assumed because of the 4S1P it would have sufficient power to keep up with the XHP35 HI, but now I am not sure.
As BlueSwordM wrote, the 4S1P has sufficient voltage overhead to power a 6V emitter like the XHP70.2 (6V) full power without stepping down until batteries are almost dead (step down due to heat disregarded). The 4S1P does not have sufficient voltage overhead to do that with a 12V XHP35 emitter, as can be seen in the runtime graph of the BLF GT.
In order to have constant max output in the 4S1P XHP35 configuration you need a buck/boost driver. The reason I wrote that it’s most likely not the case is simply because I don’t see this in reviews. With lights using 4S1P XHP 35 or 2S2P XHP70 (6V), I’ve always seen reduced output with depleting cells, meaning a buck driver is used.
So there is no certainty, but statistically it seems most likely that the MT07S HI uses a buck driver and not a buck/boost driver. But of course you never know.
You can test this easily if you have a lux meter. Do a ceiling bounce with full cells, then a ceiling bounce with cells at let’s say 3.7V and 3.2V for example.