Originally Posted by
KD5NRH
The triple light sits almost balanced on the bar, though, where the single ones have almost all their weight forward of the mount point, so they have a much stronger tendency to pitch forward.
Not in my experience. I used the lights with the o-ring mount for a while and the mount was fairly secure as long as the o-ring was small enough.
I also have a dual light version of the one you posted and it's balance point isn't any different from the single emitter light. All of the weight on
all of these lights is towards the rear of the light anyway. That's where the electronics and, more importantly to weight distribution, the heatsink lies. None of them are "weight forward". Old halogen lights could be a bit weight forward because they didn't usually have (or need) a heat sink and the reflector on the light was usually the heaviest bit.
But LEDs are relatively lightweight forward of the center line because the reflector and housing aren't that heavy.
By the way, the reason that I don't use the dual emitter lamp like the one you posted is that it doesn't put out twice as much light. It puts out the same light from 2 emitters. It uses the same 18650 battery pack and draws the same amperage as the single emitter so each lamp is putting out half as much as a single emitter. I suppose there is some way to work around this so that both lamps would put out as much light as a single emitter but it's beyond my capabilities. I suspect that it would need a much larger battery as well.
This is something that I've noticed on a few other dual emitter lamps I've been suckered into buying. They all put out the same light as a single emitter because they use the same battery. The "Free Lunch Gene" is strong in these lights
Originally Posted by
KD5NRH
Still a far cry from being able to tighten down a screw until it just ain't gonna move.
More like a medium cry

I agree that I don't like the o-ring mount but that's not because of the light shifting. It never shifted on me even when used off-road. I went to a clamp mount because it's far more convenient to switch lights from one bike to another. Pulling the o-ring off...especially if it is tight...is a hassle on a cold morning.
On the other hand, the o-ring mount isn't so bad that someone should pass these lights up in favor of something that costs 3 to 5 times as much for the same light output. As I posted above, there are inexpensive DIY mounts that work as well as the more expensive light mounts and the cost of the light and clamp is still far below that of the more expensive lights.