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Search the Community: Showing results for tags '20/4'.



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  1. Hi everyone I know similar threads exist about light timing and what is best but I don’t want to start that debate here. I currently have a light on 24/0 I would like to be on 20/4 but my lights only have options for being on 12,14,16 or 18 at a time. My question is this: does anyone have any experience or ideas on what would happen if I had 2 lights with lower intensity one coming on at say 8AM and the second coming on at 10AM both on a 18/6 cycle so the 8am would turn off at 2am and the 10am at 4am. This would create the 20/4 but with 4 hours reduced light intensity, somewhat like a natural sunrise and sunset Any thoughts welcomed :))