Intermatic NIGHTFOX Electronic...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$121.00
$62.13
Intermatic EK4436SM NIGHTFOX Metal Stem Mount Electronic Photocontrol, 120-277 V

Intermatic NIGHTFOX Electronic Photocontrol 120-277V Metal Stem Mount with Surge Protection

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Model: EK4436SM
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$121.00
$62.13
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Intermatic NIGHTFOX Electronic Photocontrol 120-277V Metal Stem Mount with Surge Protection

Professional Outdoor Lighting Control with Advanced Electronic Switching

The Intermatic NIGHTFOX Electronic Photocontrol delivers reliable automatic lighting control for outdoor applications with 120-277V compatibility and metal stem mount design. Featuring DC relay with zero-crossing circuitry and conformal coated PCB construction, this photocontrol provides dependable performance for single or multi-fixture HID and LED installations up to 1,650W at 277 VAC with gray finish and threaded stem mounting.

Professional Features & Benefits

  • 120-277V Wide Voltage Range: Compatible with standard commercial and residential electrical systems for versatile installation flexibility.
  • 1,650W Load Capacity: Handles substantial lighting loads for comprehensive outdoor lighting control in commercial and industrial applications.
  • DC Relay with Zero-Crossing Circuitry: Extends operational life through precise switching technology that minimizes electrical stress and component wear.
  • 255J MOV Surge Protection: Protects against electrical surges and voltage spikes to ensure reliable long-term operation in outdoor environments.
  • Non-Drift Silicon Light Sensor with IR Filter: Provides accurate light detection and consistent switching performance without calibration drift over time.
  • 15-Year Design Life: Engineered for extended service life with over 10,000 ON/OFF switching cycles for dependable long-term operation.
  • Metal Stem Mount Design: 1.25"-14 NPSM threaded stem fits standard outlet boxes and wall packs with minimum 7/8" diameter installation hole.

Technical Specifications

  • Applications: Outdoor Lighting Control
  • Country Of Origin: Mexico
  • Depth: 2.188 in
  • Input Voltage Rating Range S : 120-277 VAC, 50/60 Hz (Nominal Voltage)
  • Marketing Description: NIGHTFOX electronic photocontrols permanently install on outdoor electrical boxes or outdoor lighti
  • Product Color: Gray
  • Product Height: 2.688 in
  • Product Length: NA NA
  • Product Weight: NA lbs
  • Product Width: 1.75 in
  • Warranty Period: 8-Year limited

Professional Applications

  • Commercial Building Exterior Lighting
  • Industrial Facility Perimeter Lighting
  • Parking Lot and Garage Lighting Control
  • Residential Outdoor Security Lighting
  • Multi-Unit Property Common Area Lighting
  • Retail and Office Building Exterior Illumination
  • Municipal and Public Facility Lighting

Why Choose Intermatic Quality?

Intermatic NIGHTFOX photocontrols combine proven electronic switching technology with robust outdoor construction, backed by an 8-year limited warranty. The conformal coated PCB and fail-ON mode design ensure reliable operation in demanding outdoor environments, while the gray finish and compact dimensions provide professional appearance and versatile mounting options.

Manufacturer Resources

Product Specs

Application:
Outdoor Lighting Control
Country Of Origin:
Mexico
Input Voltage Rating Range S :
120-277 VAC, 50/60 Hz (Nominal Voltage)
Marketing Description:
NIGHTFOX electronic photocontrols permanently install on outdoor electrical boxes or outdoor lighti
Product Color:
Grey
Product Height:
2.688 in
Product Length:
NA NA
Product Weight:
NA lbs
Product Width:
1.75 in
Warranty Period:
8-Year limited
Product Depth:
2.188 in

Intermatic EK4436SM – Frequently Asked Questions

1) Will the Intermatic EK4436SM photocontrol work on a 277V circuit, or do I need a separate model for 120V?
One part covers both. The NIGHTFOX EK4436SM is rated 120-277 VAC, 50/60 Hz, so the same photocontrol goes on 120V residential exterior circuits and 277V commercial lighting branch circuits without stocking two versions. For a property manager standardizing across a mixed-voltage portfolio, that means one SKU on the truck.
2) What size hole do I need to drill in a wall pack or outlet box to mount the NIGHTFOX stem photocontrol?
The EK4436SM uses a 1.25"-14 NPSM threaded metal stem and needs a mounting hole of at least 7/8 inch diameter. It threads directly into standard outdoor electrical boxes and wall packs, so on a retrofit you're generally reusing the existing photocontrol knockout rather than cutting new sheet metal.
3) How much lighting load can one Intermatic NIGHTFOX EK4436SM photocontrol switch?
Up to 1,650W at 277 VAC. That's enough to run a bank of LED wall packs or several HID fixtures off a single control, so you can put one photocontrol on a lighting contactor-free circuit feeding multiple fixtures instead of one per pole. Size your total connected load before ganging fixtures onto it.
4) Does this photocontrol work with LED fixtures, or is it only for HID?
Both. The NIGHTFOX electronic photocontrol is specified for single or multi-fixture HID and LED installations. It switches with a DC relay using zero-crossing circuitry, which cuts the inrush stress that kills mechanical thermal photocells when they're switching LED drivers.
5) What's the difference between a stem mount photocontrol and a twist-lock photocontrol?
A stem mount like the EK4436SM threads permanently into the fixture or box through a 1.25"-14 NPSM stem and is wired in directly, so it's used where there's no receptacle on the luminaire. A twist-lock unit plugs into an ANSI C136.10 three-prong receptacle on top of a shoebox or cobra head and can be swapped without opening the fixture. Check your fixture first: if it has a round locking receptacle on the housing, you want a twist-lock, not this stem model.
6) What happens to the lights if the photocontrol fails?
The EK4436SM is built fail-ON. If the control fails, the circuit stays energized and the lights stay lit rather than leaving a parking lot or building perimeter dark. For security lighting and code-driven egress illumination that's the behavior you want, since a dark failure goes unnoticed until someone reports it.
7) Will this photocontrol hold up outdoors in an area with lightning and utility surges?
It carries 255J MOV surge protection and a conformal coated PCB. The MOV clamps voltage spikes off the line, and the conformal coating seals the board against condensation and humidity inside the housing, which is what typically corrodes an outdoor electronic control before its relay ever wears out.
8) Will a NIGHTFOX electronic photocontrol drift out of calibration and start switching at the wrong time of day?
No. It uses a non-drift silicon light sensor with an IR filter, so the turn-on and turn-off light levels stay consistent over the life of the control. The IR filter keeps heat and infrared from vehicle headlights or nearby HID sources from skewing the reading, which is a common complaint with older cadmium sulfide cells that soften with age.
9) Can I use this photocontrol to control a parking lot lighting circuit for a multi-family property?
That's a typical application. The EK4436SM is specified for outdoor lighting control including parking lot and garage lighting, commercial building exteriors, and multi-unit common areas. With 1,650W of capacity at 277V it can drive a group of fixtures from one control point, and the fail-ON design keeps the lot lit if the control ever quits.
10) How long should an Intermatic NIGHTFOX photocontrol last before it needs replacing?
Intermatic rates it for a 15-year design life and over 10,000 ON/OFF switching cycles. At roughly one cycle per day that's well past a normal relamp interval, so on a maintenance schedule you're not planning a photocontrol swap at every fixture service visit.
11) How much room do I need inside the wall pack for this photocontrol to fit?
The NIGHTFOX EK4436SM body measures 2.688 in height, 1.75 in width and 2.188 in depth, in gray. Those numbers are the housing outside the enclosure; the stem plus wire leads are what pass through the 7/8 inch minimum hole, so what you actually need inside the box is splice room for the leads, not clearance for the body.
How fast can I get the Intermatic EK4436SM delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Intermatic EK4436SM come with a warranty?
Absolutely. The Intermatic EK4436SM is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Intermatic EK4436SM?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Intermatic EK4436SM from ZenSupply?
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