Off topic - need a 12vdc dusk/dawn timer

To many ads? Support ODJT and see no ads!

rickryan.com

DJ Extraordinaire
ODJT Supporter
Dec 9, 2009
17,942
14,804
56
Hendersonville, TN
www.RickRyan.com
A lot of you guys are more techy than me. Hoping for some assistance. I need a photo-switch that will turn on at dusk, then switch off after X hours. So far, everything I've found needs 120vac input. I need a switch that runs off DC power and will do a DC pass-through. Any suggestions appreciated.
 

steve149

Shine on you crazy diamond
Staff member
ODJT Supporter
Sep 26, 2011
27,766
44,997
Connecticut
I'm only aware of 120v versions .. like those in spotlights or in landscape lighting transformers.
 

DJ Bobcat

DJ Extraordinerror
ODJT Supporter
Nov 8, 2014
8,745
13,492
Oklahoma City
A lot of you guys are more techy than me. Hoping for some assistance. I need a photo-switch that will turn on at dusk, then switch off after X hours. So far, everything I've found needs 120vac input. I need a switch that runs off DC power and will do a DC pass-through. Any suggestions appreciated.
Can you please explain the need for a DC power source? Are you planning to plug this switch into your car?
 

rickryan.com

DJ Extraordinaire
ODJT Supporter
Dec 9, 2009
17,942
14,804
56
Hendersonville, TN
www.RickRyan.com
Can you please explain the need for a DC power source? Are you planning to plug this switch into your car?
It's for my venue sign. I don't want to run AC (digging a trench thru the parking lot) so was wanting to user a marine battery with solar panel to keep it charged. An DC>AC inverter draws power continuously but it looks like that's my only option. I'm planning to use tape lights on the sign, just like I did on the sign on the side of the building.
 
  • Like
Reactions: DJ Bobcat

steve149

Shine on you crazy diamond
Staff member
ODJT Supporter
Sep 26, 2011
27,766
44,997
Connecticut
There are plenty of 12v timers .. it's the photocell integration I couldn't find.
 

Proformance

DJ Extraordinaire
Nov 6, 2006
7,228
4,614
If you run a 12V landscape line you won't need to trench that deep, and you can put an AC timer on the 12V power supply back at the building itself. This means your sign will light up even during a week of cloudy weather.

Another option is just to use all-in-one solar landscape fixtures that can be adapted for signage. No battery, charger, inverter, or timer required.

Personally, I'd prefer a AC GFI because a convenience outlet near the entrance might be useful for certain kinds of events. If there's a utility pole nearby you might be able to get a separate meter drop to your sign. You'll need to do your own conduit work back to the pole, but the utility treats it as a second account to the same property - not much different than a duplex or attached condos.

Of course, lighting up your sign usually has to also have code approval. Being approved for a sign versus a lighted sign are two different cases.
 
Last edited:

Ausumm

No Matter Where You Go... There You Are!
Oct 21, 2008
11,421
13,260
57
Bethlehem PA
It's for my venue sign. I don't want to run AC (digging a trench thru the parking lot) so was wanting to user a marine battery with solar panel to keep it charged. An DC>AC inverter draws power continuously but it looks like that's my only option. I'm planning to use tape lights on the sign, just like I did on the sign on the side of the building.
Don't know if this helps



12v.jpg