Broad daylight? You don't need a light in broad daylight. What makes you think if they can't see you in broad daylight that their going to somehow see your light? If their that blind their not going to see a light. If the weather is gloomy then I will use a light on flash mode, I currently use a Blackburn Mars 4 but will upgrade this spring when lights go on sale to probably a Light & Motion Vis 180 or the Serfas Shield but I haven't decided completely yet on either.