yeah this is a great light. On a ride a few night ago and compared it directly against a hope vision 4 and the old halogen flood/spot lumicycle combo. Much brighter and far longer throw than either of these other lights, and contrary to my earlier post, no signs of getting too hot on boost. I think it is so bright on boost that after a while you lose some of your night vision and you can think it’s not going to level 5 because it looks like only level 4, but in fact it is still on 5, it’s just that your vision has changed!
I went down a long fast descent a couple of nights ago and I realised when I’d got to the bottom that I’d done it at daylight speeds, i.e. I was able to see just as well as if it had been in the middle of the day. My only critiscm is that the beam shape is not a very wide flood, there is limited light at the very wide periphery but this only comes into play on very tight weaving slow singletrack such as in between trees in the local woods. Overall I am hugely impressed with the light including the build quality.