mr.wilson
.Registered Member
Can you give us the lighting schedule for the DT? When everything comes on and turns off.....
Thanks.
The first blue LEDs come on at 11:00. Each of the 16 Orphek fixtures come on five minutes apart to ease into dawn with the sun rising from east (right) to west (left). One hour later at 12:00, the white and the rest of the blue LEDs in the Orphek fixtures start to come on every five minutes from right to left, alternating on each side of the tank (surrounding the MHL fixtures). An hour later at 1:00, the MHL lights and T5s all come on at once for full mid day illumination. We thought about staggering the on/off times of these fixtures but our wiring to the Profilux is limited; remember, the Profilux is 40' away from the furthest light and we don't have a conduit for wiring. It's one of the shortsights of the original plan.
There is little in the way of light shock with all three Aqua-Medic fixtures (12 x 250w MHL + 12 x 39w T5 actinic) come on at once, by this time the tank is pretty bright with just the Orphek LEDs. The Aqua-Medic lights go off 7 hours later at 8:00. Then the Orphek white & blue mixed lights (60:40) start turning off every 5 minutes in succession starting at 9:00 for a total of 9 hours of duty for each light fixture. The blue dusk light stays on until 11:00 for a total of 12 hours of blue light. Again, these lights go off in sequence every 5 minutes from right to left for a smooth transition.
Summary[\b]
12 hours blue LED (4 x 2w LED chips per fixture x 16 fixtures = 128w)
9 hours 60:40 white & blue LED (56 x 2w x 16 = 1792w)
7 hours MHL & T5 actinic (12 x 250w + 12 x 39w = 3468w)
7 hours peak illumination (1920w LED + 3468w MHL & T5 = 5388 = 4w/gal)