i need to maximize if i'm gonna do any long distance riding, so i'm going to be looking to finalize the system with a 5w wedge-base tail light & a 10w wedge-base xenon headlight. bummer, i was loving the dual lamps, but it just ain't gonna cut it. i need at least 4 hours at a shot without dragging my charge beyond recovery. i could go with more candlepower, but the balance of all factors (cost, runtime, effectiveness, weight) always brings me back to technical reality.
someday, an led running light system will fit the budget...that will buy me a ton of daylight runtime.