3 plants 3 lights?

Hey guys Well I'm starting back up again for the 10000000000th time lol and I've only got 3 plants to work with there all cheese from clones and 2 are in aquafarms and 1 is in a 35 litre pot filled with pebbles and some drippers basically just one big 1 plant Wilma system. There about 2 feet now nice and bushy and was wondering if it would be ideal to put a plant under a 600w each for flowering or no? I'm not greedy but I like to get the most out of my time spent with the girls, so was just thinking would be alright compared to say 10 plants or would it be a waste of electricity for just 3 plants? Thanks peeps for any input.

You should be able to achieve the same production per watt regardless of plant count. Just vegetate your plants longer. Make your one plant the size of the 10 small ones you would do.

Im getting larger buds under HPS Its my understanding that light has more to do with yield then nutes (Strain being the major factor 1st seconded by lights then nutes )