Not OP, but same light. If there's no ambient light brighter than a moon or night light, the dim mode is bright enough for about a 5ft distance for me. If I've gone fully night-adapted, the dim mode is good for a large area. It has a relatively narrow pattern (center spot and weak flood) so it has decent throw so the "half a candle" has some reach. Some rough measurements put the spot at a 20deg beam and the spilled flood at 70. The bright mode can show me about a whole garage bay or bedroom. Again, we're talking in very dark situations, not streetlit areas or lamp-lit rooms. If there's that much light around, I'll need the bright mode for areas and use the dim mode for closeups in shadows.