I'm about to get 16 10w and grow something even if they dont work for my tanks. I am so excited they have cheap ones in the US they are RGBW color and have a remote control for $21 shipped. I really wanna have some NON planted tanks with nice ambiance lighting.
So these pump 1800 lumens for $30....WOW anyone willing to do a ROAK
900 LM for a 10 w the 100w are 8000LM I believe there are so many different kinds. Careful make sure they have the LM value listed when you buy off ebay alot of defects on there.