Install a dusk-to-dawn photocell where it can see natural daylight but not the fixture beam it controls. Keep it out of glare, do not leave old sensors connected to nothing, secure and seal junction boxes, follow electrical code, and keep conduit neat in visible areas. One properly rated photocell can often control multiple fixtures, but wiring and load limits should be confirmed by a qualified electrician.
How NOT To Install a Dusk to Dawn Daylight Sensor Photocell
1. Ensure Your Photocell Has Lights to Connect To
2. Don't Put Photocells in the Path of the Lights
3. Lights Are Part of the Design, Photocells Are Not.
4. Follow the Electrical Code
5. Keep it Clean Looking
The excessive conduit should have been wired from the ceiling down to give it a cleaner look. It would be fine on the side of the warehouse, but at the main pool or a resort you'd expect better.
That two-head wall light would be harsh at that distance. Two smaller fixtures can spread the light more evenly and avoid putting a spotlight directly on guests. A few lower-output LED barn lights would usually be more visually appealing and easier on the eyes.
Here Are Some Tips on How You Should Install a Photocell.
Photocell Placement Mistakes to Avoid
A dusk-to-dawn photocell needs to read the sky, not the light it controls. Place the sensor where it will not see fixture glare, reflected wall light, vehicle headlights, tree shadows, or another nearby light source. Confirm voltage, wiring diagram, weather sealing, fixture compatibility, and the photocell install direction before installation.
| Mistake | What happens |
|---|---|
| Facing the photocell toward the fixture | The light can cycle on and off repeatedly. |
| Mounting under an overhang or shade | The light may stay on during the day. |
| Ignoring line/load wiring | The sensor may fail or create an unsafe circuit. |
Frequently Asked Questions
- Where should a dusk-to-dawn photocell be installed?
- Install it where it can read natural daylight without seeing the light beam, reflected glare, headlights, or deep shade.
- Why does a photocell make lights cycle on and off?
- Cycling often happens when the sensor sees the fixture it controls, so the light turns itself off and then back on repeatedly.
- Can one photocell control multiple fixtures?
- Often yes, but the wiring method, voltage, fixture load, and photocell rating should be checked by a qualified electrician.
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About the Author
Dara Greaney is founder and CEO of LED Light Expert with deep expertise in commercial LED lighting, retrofits, and photometric planning.
Editing by David Peguero
2 Comments
Frank
Nice, I have learn alot. Thanks
Sales
Thanks for reaching out. Please feel free to contact us directly at 800-674-9420 or [email protected] for pricing/quotes or product info at any time.
Sparky
Great Advice ill take that into consideration when installing my lights
Sales
Thanks for reaching out, we have sent you an email response. Please feel free to reach out to us directly at 800-674-9420 or [email protected] for pricing/quotes or product info at any time.
