looked at the chihiros b lighting and hear the app is a turd saying It goes out sometimes and cant get light to turn on without it. people telling me the b models don't grow plants?! I don't even have a phone lol so no apps for me unless its on laptop. have a seaoura 628, 659 and a hygger 999 and old beamslight 30" 6500 light bright as hell over the others more white light. though about going with chihiros b on 29g for more par, the seaoura659 says its 90 par at 18" and the 628 is 50 par at 18" who knows the truth don't have par meter just what I've found online.