Yep you want something that is powerful enough to grab attention on a bright day. I'm running a Cygolite Dash 600 in stobe mode and I don't have it pointing down at the ground. Small lights or anything that is advertised as "be seen" tend to be underpowered and only noticeable in the day at distance if you are looking for them. Next time your riding and you see another cyclist ask yourself what you noticed first. If it wasn't the light, then whatever they are using is not doing it's job. Chances are you will notice the cyclist first then see the underpowered light they are running.