Hey all, thanks to everyone for your input and advice!
The wheelie bin, yes is an odd setup but also reasonably cheap and its portable too. If u saw it .. yeh - its obvious something is going on (cos of all the holes n fans attached), hence it being in our garage away from prying eyes .. He set it up so there is a intake fan at the bottom and a exit fan at the top & is using a self watering wicking system so he doesn't have to tend to it everyday & has got a dehumidifier inside to help with the extra moisture.
(I would post pics but he is paranoid, so im gonna respect his wishes) ..
Its a bit like this one but not as complicated.
He did try the HPS option once, but after sticking a thermometer in it, he wasnt happy with the temps in a plastic bin n went LED instead.
The Viparspectra does look very good .. But its way way way out of my budget range, but thx for advising.
The only reason I was considering the security light or UFO light was based on a friend's experience. They've been using these types of lights to grow tomatoes and strawberries with great success (albeit not in a wheelie bin - Just thier open garage space), I have got a lot of free strawberries from them this year .. Yummy!
This got me thinking if these lights could potentially work for cannabis as well, since they seem very effective for other plants?
Im wondering if there's a significant difference in the light spectrums/lumens between cannabis and plants like tomatoes or strawberries. Do cannabis plants have specific needs that these cheaper lights might not meet, even if they work well for other crops?
Im particularly interested in any actual evidence or scientific data on this matter, rather than anecdotal experiences.
If anyone can point me towards research studies, expert articles, or any scientifically-backed sources that compare the light needs of cannabis to those of other plants, that would be incredibly helpful. Im looking for more concrete evidence to help guide my decision.
Thanks again for all your help!