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the on off times are just to simulate the natural cycle of daylight...sunlight outside isnt just instant light...then instant dark at a certain time
it gradually cycles up and cycles down...so unless 1) they use LED lights (expensive) or 2) have a dimmable ballast (also expensive)...timing bursts are the next best thing
personally...I dont care...so my fish get instant light every morning (they visibly panic) and instant darkness at night (they visibly panic)
it gradually cycles up and cycles down...so unless 1) they use LED lights (expensive) or 2) have a dimmable ballast (also expensive)...timing bursts are the next best thing
personally...I dont care...so my fish get instant light every morning (they visibly panic) and instant darkness at night (they visibly panic)