Dusk dawn lights?

[thenewestguy]

Ive seen a couple of videos with people having dusk dawn lights on their tanks? Is it a special light fixture? Timer? Or what?
Please help

 

[gemmy]

Some people run actinic lights then put their lights on full strength for a few hours then the actinics then moonlights. I put my actinics on for 2 hours then my halides for 6 then actinics then moonlights.

 

[btldreef]

Then there are those of us with LED lighting that do have a dimmer set up on a controller. My blue lights fade on in the morning and are on for about 2 hours, then the whites fade on and at night the whites fade out first, then blue.

 

[gemmy]

Quote:
Originally Posted by BTLDreef http:///t/389548/dusk-dawn-lights#post_3443674
Then there are those of us with LED lighting that do have a dimmer set up on a controller. My blue lights fade on in the morning and are on for about 2 hours, then the whites fade on and at night the whites fade out first, then blue.
I will be coming over to the LED dark side very soon.

 

[snakeblitz33]

I'll be coming to the LED light side soon as well.

I use two timers on my tank. Actinic T5's come on an hour before my whites, and turn off an hour after my whites go off. That's about as dusk/dawn as I get.
Metal halides have "warm up" times... where the ballast and bulbs have to "warm up" before the bulb turns on to full brightness...