grow light efficiency

Still a newb, was wondering having 3x 600w led ligjts, and electricity is expensive where I 'm at. Can I conserve electricity by havinf them at 50% output and lowering them 50% closer to plants. I am aware that I get less light footprint for plants around the led's, but the ones rigjt below them...

I'm in the process of looking at indoor equipment and live in a country where electricity is not exactly cheap. I was wondering if I'd be better off buying a LED growlight that is higher wattage, slightly more efficient (higher quality bar setup) and pay a higher price for it up front if it...

I have an extra light with a all blue spectrum that can clip to my LED, can I use them both at the same time during veg to help them get bigger and stronger, and could I do the same with the red light for flowering?

This far. If I calculated everything correct, it should be 300-350 watts. What are some other video ideas? It's really interesting to see that the red chips burnt out first.

There are a lot of members here who seem to distrust when I say that umol/joule is not a good indicator of how well a light can grow plants. Various members here have demanded I have my lights tested for these figures and recommended me to a company called CSA Group to do so. I have contacted...