Bright and wonderful!
We purchased this to use on our dock and they are wonderful! Looking at them from the top of a 40 step flight of stairs and 3 landings, it looks like a landing strip.
They are very bright and do attract little gnats but with them being in the dock, it doesn't obstruct the light in any way. In the morning we just brush off the "bodies" of the gnats that didn't make it through the night :)
Proseasy to install
solar so no worrying about battery life