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by ssl-3
543 days ago
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The shape of the beam is important, not just the angle of it. Part of what differentiates a low-beam headlamp from a high-beam headlamp is the shape of the beam. Bike lights, at least as-sold here in the States, seem to generally be built from flashlight parts. And unlike car low beams, flashlights project a circular beam. With a circular beam, it is really hard to illuminate the path ahead with any meaningful brightness without blinding others. A better beam pattern, ideally with sharp cutoffs, can illuminate a pathway and the obstacles that may be on it without unduly blinding others. --- I happened to buy one such light, just by chance, several years ago. It's a "Schwinn Intensa 100" from Wal-Mart, part number SW80251WM. It kind of sucks in terms of overall illumination and is no good for high-speed rides at night, but it does light up the path ahead and provides a sharp beam cutoff to avoid blinding others. (So actually, it's pretty excellent for casual riding.) |
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