Slowroad wrote:One flashing, one steady, front and rear. Belt & braces?
And to go further:
1) The steady lights should ideally be dynamo-powered
with a "stand" light so that they remain lit when briefly stationary
and comply with German StVZO standard
and are either controlled by a light-sensor or controlled by a single switch that is easily operated from the riding position on the cycle.
and the rear light is combined with a red rear reflector so that it still has some benefit when the wire to the front light / switch fails.
2) The flashing lights are battery-powered
so as to be entirely independent of the dynamo lighting system
and the rear one is combined with a red rear reflector so that it still has some benefit when the battery fails.
And I would like to see these battery-powered take either a single or at most two AA or AAA cells that are mounted horizontally across the bike and the light "remembers" (via a capacitor or light + motion sensor) what state ("on" or "off") in then event of a brief battery disconnect as a result of a bump / knock / jolt so they don't accidentally switch off.
See for instance Cateye Reflex Auto TL-LD570-R / TL-LD570-F
which are in my opinion the best "backup" lights currently available.
Now that is what I call belt'n'braces.
Also regarding pedal reflectors for recumbent cycles:
I have a pair of the Cateye Reflex Auto TL-LD570-F front (i.e. white) instances of this light/reflector
attached to the reverse / "underside" of the SPD pedals on my recumbent (i.e. they face *forward* when in use)
and the "auto" functionality means that they only come on in the dark when I am pedalling.