{"product_id":"intermatic-k4221c-120-volt-stem-and-swivel-photo-control-2-pack","title":"Intermatic K4221C 120-Volt Stem and Swivel Photo Control (2 Pack)","description":"\u003cp\u003eIn this review of the Intermatic K4221C 120-Volt Stem and Swivel Mount Photo Control, the bottom line is simple: this two-pack is for installers and homeowners who want a straightforward, adjustable dusk-to-dawn sensor that replaces or upgrades standard stem-mounted controls. The single biggest reason to buy is the adjustable light level slide and swivel stem, which let you fine-tune sensitivity and aim the sensor without rewiring. The package also includes a washer gasket and locking nut, so users get what they need for a clean stem installation right out of the box.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStem and swivel mount:\u003c\/strong\u003e The swivel on the 1\/2-Inch-14 threaded stem allows precise aiming of the photocell to reduce false triggering from stray light.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLight level slide adjustment:\u003c\/strong\u003e The built-in adjustment lets installers set the turn-on and turn-off threshold for dusk-to-dawn control to match local light conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete mounting hardware:\u003c\/strong\u003e Each unit ships with a washer gasket and locking nut so the sensor seals and secures to panel cutouts without extra parts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact footprint:\u003c\/strong\u003e Measuring 1 9\/16' wide by 5 1\/2' long, the body fits into common enclosures and fixture stems where space is limited.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety listings:\u003c\/strong\u003e The K4221C is both UL and CSA listed, providing reassurance for commercial and residential electrical compliance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe K4221C is aimed at electricians, maintenance crews, and handy homeowners who need a reliable replacement for existing stem-mounted photo controls or want an adjustable sensor for outdoor lighting, signage, or security lights. Its swivel mount and light level slide make it especially useful where light sources or reflections can otherwise cause premature switching.\u003c\/p\u003e\n\u003cp\u003eThose who should look elsewhere include buyers who require multi-voltage models beyond 120V or integrated smart controls. If you need wireless scheduling, networked dimming, or a fully sealed industrial enclosure, a different class of photocontrol would be more appropriate.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEasy installation with included washer gasket and locking nut, reducing time on site.\u003c\/li\u003e\n\u003cli\u003eGood functionality from the light level slide and swivel stem for precise alignment.\u003c\/li\u003e\n\u003cli\u003eQuality feel and value for money as a two-pack replacement option for hard-wired units.\u003c\/li\u003e\n\u003cli\u003eUL and CSA listing supports accepted safety standards for many installations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDurability reports are mixed among users, so long-term lifespan can vary by environment.\u003c\/li\u003e\n\u003cli\u003eLimited to stem-mount form factor and 120-volt single-voltage models in this listing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct\u003c\/td\u003e\n\u003ctd\u003eIntermatic K4221C Stem Mount Photo Control (2 pack)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e120-Volt single-volt model\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount\u003c\/td\u003e\n\u003ctd\u003e1\/2-Inch-14 threaded stem with swivel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjustment\u003c\/td\u003e\n\u003ctd\u003eLight level slide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded hardware\u003c\/td\u003e\n\u003ctd\u003eWasher gasket and locking nut per unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e1 9\/16' wide x 5 1\/2' long\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eListings\u003c\/td\u003e\n\u003ctd\u003eUL and CSA listed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Intermatic K4221C is a practical, value-minded choice for anyone replacing a stem-mounted photocontrol or installing a basic dusk-to-dawn sensor. Its adjustable light level and swivel stem offer real installation flexibility, and the included gasket and nut simplify mounting. While some users report mixed longevity, the product's functionality, safety listings, and two-per-pack value make it a solid pick for standard outdoor lighting needs.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this a direct replacement for hard-wired stem photocells?\u003c\/strong\u003e\u003cbr\u003eYes, customers report it works as a direct replacement for standard hard-wired stem-mounted photo controls of the same thread and mounting style.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it include the mounting hardware needed?\u003c\/strong\u003e\u003cbr\u003eYes, each photo control ships with a washer gasket and locking nut to secure and seal the stem in typical panel and fixture cutouts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I adjust when the sensor turns lights on?\u003c\/strong\u003e\u003cbr\u003eYes, the unit has a light level slide adjustment to set the turn-on and turn-off thresholds for local conditions.\u003c\/p\u003e","brand":"Intermatic","offers":[{"title":"Default Title","offer_id":48232038596827,"sku":"B0117UI92M","price":51.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/610NdEMpTLL._AC_SL1500.jpg?v=1770843281","url":"https:\/\/gearmusthave.com\/products\/intermatic-k4221c-120-volt-stem-and-swivel-photo-control-2-pack","provider":"GearMustHave","version":"1.0","type":"link"}