I run front and back flashing battery operated LED's plus a reflective vest. The front is a BLT, not sure what model but it has 7 LED's and 4 levels of on position. The rear is a Blackburn Mars 3.0. The lights would cost about $15 each US and they run through three AAA batteries in about 4-5 hours so they are not good for everyday use.
Twilight conditions are actually more dangerous than in the dark because when it's dark there is more contrast between your lights and the ambient.
I think that cars never fail to see me but they have no idea what it is and can't judge my speed. Drivers have occasionally done dumb things in all the confusion.
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