Antsonline
Likes Dirt
Broad question - why would you need one of the red LED's?Don't forget to bring a rear red light for your bike as well as your front light/s. It can just be one of those little red one LED flashers.
The obvious answer is for people to see you, but you would hope that the 'front' lights on their bike do that job. I find the red dots give me all sorts of bother with my sight.
I only comment as they are actually 'illegal' in the UK for those reasons.
Of course, I'll have mine on full 'random flash' for the weekend - to encourage epileptic fits amongst my pursuitants.