I recently bought two of these lights and they are very bright. They are very visible during the day and are particularly visible at night. However, one of the lights has an issue that is stopping charging, but that's an easy fix. I just plug it back in and wiggle it and it seems to help. The lights turn on really well and you have to pull them up, which is good because you don't want them falling off in flight. All colors and modes are equally visible and very vivid. Don't look directly into it as it is very bright. Therefore I give this rating 4 stars.
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