Cheers Bro, yup, 240W output, 28800 Lumens? roundabouts that, yeah mate, depending on height of course, this area was a 50cm x 50cm x 180c, so quite small. Had the LED right at the top 24 inches away. its a 'mainstream' LED found all over alibaba and in a few places here, but main thing is, it works and is a good benchmark test grow for other LEDs to be compared to in the same area. The next grow is going to be with a very special Osram LED, again, sorry, no names mentioned here, all on my home page. All the same, pot, soil, schedule, feed. The only thing different is the LED.