Energy saving with 2 lights

[Noob2doob]

I have a long grow room and 2 600w lights. I am on a budget with electricty so resorted to using 1 light with 3 plants instead of 4 plants with 2 lights (60L pots). My plants cirtainly are not receiving the amount of light all round that I desire!

So with this in mind, next time round I am considering using 2 lights with 4 plants but alternating between the 2 lights each lights on hour. There will still be a slight increase to electric use as I would need a couple mins overlap for each bulb to kick in before the other bulb switches off.

I'm thinking this will then provide all plants constant light during lights on hours whilst sharing the ideal lighting between each end of the room every hour.

Tempreture has also shown issues in the passed when trialing 2 lights at once.

Opinions?

Happy inhalation talkers.