Big shout out to Exposure lights. Pre smart trainer, I used to do all my winter traning at night, in the dark, around local hilly routes. The Exposure Toro is so bright I got pretty confident on the back roads around me, even on descents.
On just such a descent, in pitch dark, doing maybe 35mph, not realising that I hadn’t clipped the light on properly (my Garmin was too close to it), it suddenly detached and went bouncing and spinning down the road beside me like a demented lighthouse, while for a few moments I rode at high speed completely blind with a big drop off just to my left (this is Scotland where we ride on the left!). Pretty scary but thankfully short-lived panic!
The light was pretty easy to find as it was still pumping out 1200 lumens, on the opposite verge. That was a few years ago. It has some pretty impressive chips in its CNC alloy body but has never missed a beat since. Quality product!