Join Date: Aug 2008
Bikes: Kona fire mountain/xtracycle,Univega landrover fs,Nishiki custom sport Ross professional super gran tour Schwinn Mesa (future Xtracycle donor bike)
I realize that this isn't exactly what you were asking about, I have been using Winkkus
now for about 9 months. They are about 90 bucks a pair,well worth it IMO.
I would rather buy something of this nature, than try to DIY it, as, I don't have the requisite knowledge.
They function as mirrors, turn signals and marker/running lights. I bought mine primarily to use as turn signals. As turn signals, battery life is extremely good. I also feel that where they mount to the handlebars, it helps them work better as turn signals, because they are far enough apart to make it easier for other road users to realize that you are signaling a turn. As marker lights, I don't think the battery life would be all that great. They don't flash as marker lights, unless you activate the switch for a turn.
As marker lights they throw white light to the front, red to the rear. When you hit the switch, the red/white LEDs go to amber and they blink. When you are using them as marker lights and signal a turn, the change from solid red to flashing amber is very noticeable.
I also put reflective tape on the front side of each unit. I felt that where I don't use them as marker lights the added reflectivity can't possibly hurt.
As Always YMMV
I have no connection to the company, other than as a satisfied customer.