Did you plug in the little thingy? if not then the night mode will not be active.
Also they say it is only to be with low output light. Now who's going to be able to use that??? since that include LED, MH and T5HO, the only light that can be used with this feature is probably power compact.
Pretty useless I think. On the other end, if you have a controller, you could use what ever force you want and what ever pattern you want with them. I dim them at night so I get like a reef crest mode but much lower in flow.
Quote:
Originally Posted by markjameslucas
Just received two 40's last week, and they are amazing so far. 140 for both plus shipping. Only mistake was to not order the variable controller as two of them are way too much water movement for my 160 gallon. I've since ordered, should be getting them in 1 week. As far as noise, they are way quieter than the vortech 25's when they were cranked. Highly recommend this product.
I might add that the light sensor that is supposed to reduce the speed when light is turned down doesn't really work for me. If completely dark the powerheads run at full speed.
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