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Votatec supplies photocell sensors wholesale to electrical contractors, facility managers, and government buyers across Canada. These dusk-to-dawn switches turn outdoor fixtures on at dusk and off at dawn, no timer, no manual switch. Twist-lock, button mount, and stem mount, all built for LED loads. Also sold as photoelectric sensors, photoelectric switches, or photocontrols.
What Is a Photocell Sensor?
A photocell sensor is a light-activated switch that turns outdoor lighting on at dusk and off at dawn. Inside sits a small cell that reads ambient light. When light drops below a set threshold, the sensor closes the circuit and the fixture powers on. At sunrise it opens the circuit and the light shuts off. No timer to reset. No one flipping a switch.
You'll hear the same part called a few names. Photocell, photoelectric sensor, photoelectric switch, photocontrol. They mean the same thing in outdoor lighting. Older cadmium-sulfide cells drifted over time. The units Votatec stocks are built for today's low-draw LED fixtures and hold their threshold longer.
How a Photocell Controls Dusk-to-Dawn Lighting
The sensor reads light continuously. Most models add a short time delay so a passing car's headlights or a lightning flash won't trip the fixture off and on. That delay is what separates a commercial-grade photocontrol from a cheap retail cell. For contractors wiring street lights, wall packs, or parking lot poles, that stability is the whole point.
Pair a photocell with an LED fixture and the load draw is a fraction of the old HID it replaced. The sensor lasts longer because it switches far less current. Fewer callbacks. Fewer truck rolls.
Twist-Lock vs Button Mount vs Stem Mount
Three mounts cover almost every job. The right one depends on the fixture and the install.
Twist-lock photocell
The commercial standard. A three-prong locking base drops into an ANSI receptacle on the top of a street light, area light, or shoebox pole fixture. Swap it in seconds without opening the housing. Best for large outdoor and roadway jobs.
Button (flush) mount photocell
A small threaded cell that mounts through a knockout on a wall pack or fixture housing. Compact, low profile, popular for building-mounted security and entry lighting.
Stem and swivel mount photocell
Mounts on a bracket or conduit and swivels to aim the cell north, away from the light it controls. Handy for retrofits where there's no built-in receptacle.
Where Canadian Contractors and Facilities Use Photocells
Photocells run any outdoor lighting that should follow daylight on its own.
- Commercial and retail: parking lots, storefronts, signage, entry canopies.
- Municipal and B2G: street lights, transit shelters, park and pathway lighting, municipal yards.
- Industrial: loading docks, yard and perimeter lighting, warehouse wall packs.
- Multi-unit residential: common-area, garage, and walkway lighting for property managers.
One photocell per fixture, or one master control feeding a lighting contactor for a whole run. Both are common on Canadian projects.
Why Canadian Buyers Order Photocells from Votatec
- Wholesale pricing: contractor and project rates on single cartons or pallet quantities.
- CSA certified: approved for Canadian electrical code, no inspection surprises.
- 120-277V range: one line of stock covers residential through commercial voltage.
- Stock that ships: Canada-wide shipping from Canadian inventory, no cross-border delays or duties.
- Fast quotes: send a bill of materials, get pricing back in 24 hours.
- One supplier: photocells plus the LED fixtures they control, on a single PO.
Photocell vs Motion Sensor
A photocell switches on darkness. A motion sensor switches on movement. A photocell keeps a fixture on all night from dusk to dawn. A motion sensor triggers only when something moves, then times out. Many outdoor jobs use both: a photocell so the fixture only arms after dark, and motion to boost output when someone's there. If you need dusk-to-dawn coverage, you need a photocell.
Order Photocell Sensors in Bulk
Send us your spec or bill of materials and we'll price it for your project. Wholesale rates, CSA-certified stock, shipping across Canada.