The question is, does it grow? Has anyone tested it out?
It's a nice compact shape but I would assume you need it pretty close to the surface of the water unless it's a small pico or something.
I would save my troubles of driving to the store and having to rig up a way to hang/clip it on.
$10 more I can buy a Fugeray for low-mid light on a nano. 10" is only $36 2 day shipping on amazon. Mine grows algae in my 1g like no tomorrow. Plug and play, no Home Depot.