https://rocklighting.com/blogs/news/tunable-white-circadian-rhythm-what-you-need-to-know 2026-09-09T16:33:13-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/blog-2_1.png?v=1788996793 Tunable White Circadian Rhythm What You Need to Know Residential interior showing warm and cool white lighting side by side under a vaulted ceiling https://rocklighting.com/blogs/news/the-case-for-energy-efficient-lighting-controls-title-24-wireless-solutions-and-more 2026-09-21T10:37:26-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/Jul_Banks_Blog_610x265_72PPI-1.jpg?v=1788996895 The Case for Energy Efficient Lighting & Controls Title 24, Wireless Solutions, and more! Energy-efficient lighting and controls: LED panel, app, Leviton keypads, dimmer and occupancy sensors https://rocklighting.com/blogs/news/charge-up-with-your-ev-charger 2026-10-05T12:14:57-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/image1.jpg?v=1788996895 Charge Up with your EV Charger Electric vehicle plugged into a white charging station on a residential street https://rocklighting.com/blogs/news/surge-protectors-and-you 2026-10-05T12:14:57-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/SURGE.jpg?v=1788996895 Surge Protectors and You Hand installing a surge protective device into an electrical panel https://rocklighting.com/blogs/news/rock-lighting-warehouse-lighting 2026-10-05T12:14:57-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/Picture1.jpg?v=1788996895 Rock Lighting - Warehouse Lighting Warehouse aisle with tall pallet racking lit by linear high-bay fixtures https://rocklighting.com/blogs/news/arista-by-intermatic-the-best-lighting-control-system 2026-09-09T16:34:55-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/blog_image2.png?v=1788996895 Arista by Intermatic: The Best Lighting Control System Arista by Intermatic lighting control system: app, ceiling and wall occupancy sensors, ALC-R controller https://rocklighting.com/blogs/news/lutron-vive-may-be-required-in-your-new-build-or-retrofit 2026-10-05T12:14:57-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/800x450-2.jpg?v=1788996887 Lutron Vive May Be Required in Your New Build or Retrofit Lutron Vive wireless lighting control in an office, with ceiling sensors and the Vive phone app https://rocklighting.com/blogs/news/protect-your-home-get-whole-home-surge-protector 2026-10-05T12:14:57-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/Teal_Illustration_Digital_Business_Blog_Banner_03cab5ed-1c0c-4d18-b902-e944b89f82d3.png?v=1788996887 Protect Your Home - Get Whole Home Surge Protector Rock Lighting whole-home surge protector banner with load center, surge device and brand logos https://rocklighting.com/blogs/news/fire-rated-downlights 2026-10-05T12:14:57-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/Untitled_design_1.png?v=1788996887 Fire-Rated Downlights: A Contractor's Guide to Rated Ceilings LED fire-rated downlights banner with a flame icon on a red background https://rocklighting.com/blogs/news/legrand-wattstopper-dlm-explained 2026-10-05T12:14:57-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/Legrand_thumb_addb0759-07f9-4aeb-bc5c-09d18f6aa745_1.png?v=1788996887 Legrand Wattstopper DLM Explained Legrand Wattstopper DLM components: occupancy sensors, wall switches and a room controller https://rocklighting.com/blogs/news/the-ultimate-guide-to-elite-lightings-commercial-downlights-features-and-benefits 2026-10-05T12:14:57-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/Commercial_Downlight_1.png?v=1788996887 The Ultimate Guide to Elite Lighting's Commercial Downlights: Features and Benefits Three commercial recessed downlight housings on a blue background https://rocklighting.com/blogs/news/a-comprehensive-guide-to-lutron-radiora3-revolutionizing-lighting-control 2026-10-05T12:14:57-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/WhatsApp_Image_2023-05-03_at_15.40.31.jpg?v=1788996887 A Comprehensive Guide to LUTRON RadioRA3: Revolutionizing Lighting Control Lutron RA3 lighting control lineup: dimmers, keypads and the RadioRA 3 processor https://rocklighting.com/blogs/news/transform-your-space-with-acuity-brand-nlight-the-ultimate-guide-to-smart-lighting-control 2026-10-05T12:14:57-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/WhatsApp_Image_2023-05-18_at_08.12.30_1.jpg?v=1788996887 Transform Your Space with Acuity Brand nLight: The Ultimate Guide to Smart Lighting Control Rock Lighting and nLight banner showing a network lighting controller and four wall switch stations https://rocklighting.com/blogs/news/illuminate-your-world-the-ultimate-guide-to-transforming-your-space-with-lutron-radiora2 2026-10-05T12:14:57-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/WhatsApp_Image_2023-05-23_at_10.34.19_1.jpg?v=1788996887 Illuminate Your World: The Ultimate Guide to Transforming Your Space with Lutron RadioRA2 Lutron RadioRA 2 residential lighting control components: dimmer, main repeater and wall controls https://rocklighting.com/blogs/news/how-to-choose-lighting-electrical-distributor 2026-09-21T10:37:26-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/pexels-photo-29596327.jpg?v=1788996876 How to Choose a Lighting & Electrical Distributor for Contractors and Commercial Projects Wooden spools of electrical cable stacked against a corrugated shutter https://rocklighting.com/blogs/news/lutron-radiora-3-buyers-guide 2026-09-21T11:56:33-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/pexels-photo-6487954.jpg?v=1788996876 Lutron RadioRA 3: A Buyer's Guide to Whole-Home Lighting Control Living room with a wall-mounted television, pendant lights and built-in cabinetry https://rocklighting.com/blogs/news/visual-comfort-buyers-guide 2026-09-21T10:37:26-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/pexels-photo-31748049.jpg?v=1788996876 Visual Comfort & Co Lighting: A Buyer's Guide to Decorative and Architectural Fixtures Crystal chandelier lit against a dark wood ceiling https://rocklighting.com/blogs/news/commercial-lighting-controls-buyers-guide 2026-09-21T10:37:26-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/pexels-photo-10988763.jpg?v=1788996876 Commercial Lighting Controls: A Buyer's Guide to Sensors, Dimming, and Energy-Code Compliance Empty commercial interior lit by recessed LED panels in a grid ceiling https://rocklighting.com/blogs/news/title-24-lighting-controls-compliance-guide 2026-09-09T16:34:36-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/pexels-photo-5483233.jpg?v=1788996876 California Title 24 Lighting Controls: 2025 Compliance Guide Empty open-plan office with cubicle workstations and desk chairs https://rocklighting.com/blogs/news/lutron-radiora-3-vs-caseta 2026-09-09T16:34:36-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/pexels-photo-28500445.jpg?v=1788996876 Lutron RadioRA 3 vs Caséta: Which System Fits Your Project? Lit glass table lamp on a bedside table beside a bed and remote controls https://rocklighting.com/blogs/news/lutron-vive-commercial-wireless-lighting-control 2026-09-21T11:56:33-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/HJS-0-FM.png?v=1789080836 Lutron Vive: Wireless Lighting Control for Commercial Buildings Lutron Vive HJS-0-FM wireless hub, a white cylindrical unit with a flush-mount ring and lead https://rocklighting.com/blogs/news/title-24-lighting-retrofit-compliance 2026-09-09T16:34:35-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/pexels-photo-33947940.jpg?v=1788996875 Title 24 & Lighting Retrofits: When an Upgrade Triggers Code Commercial interior with linear pendant lighting and a suspended exit sign https://rocklighting.com/blogs/news/wattstopper-dlm-vs-lutron-vive 2026-09-21T11:56:33-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/pexels-photo-34266303.jpg?v=1788996865 Wattstopper DLM vs Lutron Vive: Which Lighting Control System? Glass office towers seen from below with a fixture mounted on a pole https://rocklighting.com/blogs/news/lutron-radiora-3-vs-radiora-2 2026-09-10T16:18:26-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/lutron-radiora-3-vs-radiora-2-keypad-comparison.jpg?v=1789082306 Lutron RadioRA 3 vs RadioRA 2: Which System Is Right for Your Project? Lutron RadioRA 3 Sunnata four-button keypad and RadioRA 2 seeTouch engraved keypad side by side https://rocklighting.com/blogs/news/rab-led-wall-pack-buying-guide 2026-09-09T16:34:25-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/pexels-photo-3887519.jpg?v=1788996865 RAB LED Wall Pack Buying Guide City street at night with an illuminated office building facade and street lighting https://rocklighting.com/blogs/news/what-is-0-10v-dimming 2026-09-21T12:25:16-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/DF10P-C1_C_1000x1000_300dpi.jpg?v=1785182759 What Is 0–10V Dimming? (And How It Differs from ELV, MLV & Phase/TRIAC) Eaton 0-10V decorator wall dimmer (DF10P-C1), 120/277V https://rocklighting.com/blogs/news/lutron-caseta-vs-maestro 2026-09-10T16:16:53-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/lutron-caseta-vs-maestro-dimmer-comparison.jpg?v=1789082213 Lutron Caséta vs Maestro: Which Should You Choose? Lutron Caseta smart dimmer and Maestro dimmer side by side, both white with wallplates https://rocklighting.com/blogs/news/commercial-occupancy-sensor-buying-guide 2026-09-10T15:54:56-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/1280_kda7R4v4ZCv6.jpg?v=1789080896 Commercial Occupancy Sensor Buying Guide Wattstopper LMDC-100 ceiling occupancy sensor in white, with a central infrared lens and two side elements https://rocklighting.com/blogs/news/title-24-daylighting-requirements 2026-09-09T16:34:25-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/pexels-photo-8662308.jpg?v=1788996865 Title 24 Daylighting Control Requirements, Explained Empty corner room with floor-to-ceiling windows and daylight falling across the floor https://rocklighting.com/blogs/news/why-contractors-buy-lighting-from-rock 2026-09-09T16:34:24-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/pexels-photo-8961695.jpg?v=1788996864 Why Contractors & Pros Buy Lighting From Rock Electrician in a hard hat routing red conduit along a block wall https://rocklighting.com/blogs/news/lutron-system-design-from-your-plans 2026-09-21T11:56:33-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/pexels-photo-9616959.jpg?v=1788996864 Lutron System Design From Your Plans Designer marking up architectural floor plans with a pencil https://rocklighting.com/blogs/news/value-engineering-your-lighting-package 2026-09-21T11:56:33-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/pexels-photo-8961146_d0f801b1-d0ba-4162-b678-15f522dfa5cf.jpg?v=1788996855 Value Engineering Your Lighting Package Two construction workers in hi-vis reviewing a large blueprint on site https://rocklighting.com/blogs/news/send-us-your-takeoff-fast-lighting-quotes 2026-09-09T16:34:15-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/pexels-photo-8482551.jpg?v=1788996855 Send Us Your Takeoff: Fast Lighting Quotes for Contractors Contractor in a hard hat holding an architectural drawing against a concrete column https://rocklighting.com/blogs/news/lighting-distributor-vs-big-box-vs-online 2026-09-09T16:34:15-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/pexels-photo-4484044.jpg?v=1788996855 Distributor vs Big-Box vs Online: Where Pros Should Buy Lighting Warehouse worker standing in an aisle of stocked shelving https://rocklighting.com/blogs/news/lutron-rr-proc3-radiora-3-processor 2026-09-10T15:54:55-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/Ecom_RR-PROC3-KIT_Family_a104ac83-4e7a-4b90-b28b-3c5d71ccccf1.jpg?v=1789080895 Lutron RR-PROC3: The RadioRA 3 All-in-One Processor, Explained Lutron RadioRA 3 components: the RR-PROC3 processor, two wall controls, a PoE injector and the app on a phone https://rocklighting.com/blogs/news/rab-led-floodlight-buying-guide 2026-09-09T16:34:15-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/pexels-photo-28827841.jpg?v=1788996855 RAB LED Floodlight Buying Guide: How to Pick the Right Flood Sports stadium at night with floodlight masts illuminating the pitch and running track https://rocklighting.com/blogs/news/wired-vs-wireless-commercial-lighting-controls 2026-09-10T16:25:33-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/wired-vs-wireless-lighting-control-diagram.jpg?v=1789082733 Wired vs Wireless Commercial Lighting Controls: How to Choose Diagram: wired vs wireless lighting control. Only the control link differs; fixtures are line-voltage wired in both https://rocklighting.com/blogs/news/how-to-set-up-contractor-account-rock 2026-09-09T16:34:14-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/pexels-photo-8470037.jpg?v=1788996854 How to Set Up a Contractor Account with Rock Three people in hard hats reviewing drawings in an empty room under construction https://rocklighting.com/blogs/news/wattstopper-lmrc-211-room-controller 2026-09-10T16:34:12-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/wattstopper-lmrc-211-room-controller.jpg?v=1789083252 Wattstopper LMRC-211: The Single-Relay DLM Room Controller, Explained Wattstopper LMRC-211 digital single relay room controller, white housing with its printed ratings label https://rocklighting.com/blogs/news/ashrae-90-1-vs-california-title-24 2026-08-13T14:20:56-07:00 weekly https://rocklighting.com/blogs/news/how-to-read-a-lighting-spec-sheet 2026-08-13T14:24:11-07:00 weekly https://rocklighting.com/blogs/news/led-high-bay-buying-guide 2026-08-13T14:24:51-07:00 weekly https://rocklighting.com/blogs/news/lutron-sunnata-vs-maestro-dimmers 2026-08-03T12:58:15-07:00 weekly https://rocklighting.com/blogs/news/title-24-outdoor-lighting-controls 2026-08-13T14:31:15-07:00 weekly https://rocklighting.com/blogs/news/do-smart-switches-need-a-neutral-wire 2026-09-21T11:56:34-07:00 weekly https://rocklighting.com/blogs/news/rab-area-pole-light-buying-guide 2026-09-10T16:34:15-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/rab-a17-led-area-light.jpg?v=1789083255 RAB Area Light & Pole Light Buying Guide RAB A17 III LED area light in bronze on its pole mounting arm, with the LED array visible https://rocklighting.com/blogs/news/lutron-rr-proc3-kit-explained 2026-09-09T16:34:14-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/ECOM_RR-PROC3-CW_HeroImage.jpg?v=1788996854 Lutron RR-PROC3-KIT: The RadioRA 3 All-in-One Processor Kit, Explained Lutron RadioRA 3 RR-PROC3 processor with its recessed-mount and junction-box-mount trim rings https://rocklighting.com/blogs/news/demand-response-openadr-for-lighting 2026-08-03T12:56:52-07:00 weekly https://rocklighting.com/blogs/news/caseta-vs-ra2-select-vs-radiora-3-vs-homeworks 2026-08-06T15:16:59-07:00 weekly https://rocklighting.com/blogs/news/westgate-vs-rab-led-wall-packs 2026-09-21T11:47:08-07:00 weekly https://rocklighting.com/blogs/news/choosing-color-temperature-commercial-spaces 2026-09-21T11:56:34-07:00 weekly https://rocklighting.com/blogs/news/cooper-lighting-commercial-fixtures-buying-guide 2026-09-21T11:56:34-07:00 weekly https://rocklighting.com/blogs/news/led-flicker-and-dimmer-buzz-causes-and-fixes 2026-08-03T12:55:31-07:00 weekly https://rocklighting.com/blogs/news/ja8-high-efficacy-lighting-title-24-residential 2026-09-21T11:56:34-07:00 weekly https://rocklighting.com/blogs/news/commercial-led-light-fixtures-guide 2026-08-04T08:41:14-07:00 weekly https://rocklighting.com/blogs/news/emergency-exit-lighting-code-requirements 2026-08-03T12:57:44-07:00 weekly https://rocklighting.com/blogs/news/led-troffer-and-panel-buying-guide 2026-08-04T08:41:57-07:00 weekly https://rocklighting.com/blogs/news/westgate-vs-rab-led-floodlights 2026-09-21T11:47:47-07:00 weekly https://rocklighting.com/blogs/news/rab-lighting-distributor 2026-08-17T09:29:10-07:00 weekly https://rocklighting.com/blogs/news/elco-lighting-recessed-downlights-buying-guide 2026-09-21T11:56:34-07:00 weekly https://rocklighting.com/blogs/news/elco-oak-series-downlights-explained 2026-09-10T16:34:14-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/elco-oak-series-recessed-downlight.jpg?v=1789083254 Elco Oak Series Downlights (E1L Family): Specs Explained Elco Oak series round recessed downlight in white, viewed face on with the reflector visible https://rocklighting.com/blogs/news/wattstopper-lmdc-100-dual-tech-sensor 2026-08-04T08:14:15-07:00 weekly https://rocklighting.com/blogs/news/wattstopper-dlm-vs-nlight 2026-09-28T15:11:48-07:00 weekly https://rocklighting.com/blogs/news/rab-vs-lithonia-led-wall-packs 2026-08-13T13:48:18-07:00 weekly https://rocklighting.com/blogs/news/nora-lighting-recessed-commercial-fixtures-buying-guide 2026-09-21T11:56:34-07:00 weekly https://rocklighting.com/blogs/news/dmf-lighting-recessed-downlights-buying-guide 2026-08-25T14:24:24-07:00 weekly https://rocklighting.com/blogs/news/elco-vs-nora-recessed-downlights 2026-08-25T14:26:43-07:00 weekly https://rocklighting.com/blogs/news/wattstopper-lmsw-105-scene-switch-explained 2026-08-25T14:52:02-07:00 weekly https://rocklighting.com/blogs/news/lutron-rmjs-8t-dv-b-powpak-dimming-module 2026-09-10T16:34:12-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/lutron-rmjs-8t-dv-b-powpak-dimming-module.jpg?v=1789083252 Lutron RMJS-8T-DV-B: The Vive PowPak 0-10V Dimming Module, Explained Lutron PowPak RMJS-8T-DV-B dimming module, a green circuit module in a white housing with a wiring pigtail https://rocklighting.com/blogs/news/westgate-manufacturing-buying-guide 2026-09-21T11:48:43-07:00 weekly https://rocklighting.com/blogs/news/daylight-sensor-vs-photocell-buying-guide 2026-09-10T16:34:13-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/wattstopper-lmls-400-daylight-photosensor.jpg?v=1789083253 Daylight Sensors vs Photocells: What to Buy, Where It Goes, and When Code Requires One Wattstopper LMLS-400 closed loop photosensor in white, a round lens head on a flat mounting bracket https://rocklighting.com/blogs/news/title-24-ja10-low-flicker-requirements 2026-09-11T12:26:34-07:00 weekly https://rocklighting.com/blogs/news/ashrae-90-1-lighting-power-density-by-space-type 2026-09-11T12:29:05-07:00 weekly https://rocklighting.com/blogs/news/triac-vs-elv-vs-mlv-dimmers 2026-09-21T12:14:44-07:00 weekly 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Two AC sine-wave diagrams: forward-phase (TRIAC/MLV) dimming removes the start of each half-cycle; reverse-phase (ELV) dimming removes the end of each half-cycle. https://rocklighting.com/blogs/news/led-rebates-dlc-utility-programs 2026-09-24T14:22:42-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/led-rebates-dlc-v6-transition-timeline.png?v=1790284962 How to Find LED Lighting Rebates: DLC, Utility Programs and What Qualifies Timeline of the DLC V5.1 to V6.0 transition: V6.0 released Nov 3, 2025; applications open Jan 5, 2026; V5.1 listings must be updated by Oct 9, 2026 or are delisted Dec 15, 2026. https://rocklighting.com/blogs/news/dali-vs-0-10v-dimming 2026-09-24T14:22:44-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/dali-vs-0-10v-control-wiring.png?v=1790284964 DALI vs 0-10V Dimming: Which Control Protocol to Spec Side-by-side control wiring: 0-10V uses a polarity-sensitive control pair so every driver gets the same level; DALI uses a powered two-wire bus with two-way data and an address for each driver. https://rocklighting.com/blogs/news/ip65-vs-ip66-vs-ip67-lighting 2026-09-24T14:22:47-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/ip65-vs-ip66-vs-ip67-water-tests.png?v=1790284967 IP65 vs IP66 vs IP67: What Ingress Ratings Mean for Lighting IP65, IP66 and IP67 compared: all dust tight; 5 is a water-jet test, 6 a powerful water-jet test, and 7 temporary immersion up to 1 m for 30 minutes. https://rocklighting.com/blogs/news/ul-924-emergency-lighting-listing-explained 2026-09-24T15:50:39-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/ul-924-emergency-vs-auxiliary-equipment.png?v=1790290239 UL 924 Explained: What the Emergency Lighting Listing Covers UL 924 scope diagram: emergency equipment such as exit signs, emergency luminaires and unit equipment vs auxiliary equipment such as luminaires with integral battery backup https://rocklighting.com/blogs/news/how-to-wire-a-photocell-outdoor-lighting 2026-09-25T12:01:24-07:00 weekly https://cdn.shopify.com/s/files/1/0556/2820/2189/articles/photocell-wiring-diagram.png?v=1790362884 How to Wire a Photocell for Outdoor Lights: Installation, Sizing and Troubleshooting Photocell wiring diagram: black lead to Line 1, white lead to neutral on 120, 277 or 347 V or to Line 2 on 208, 240 or 480 V, red lead is the switched load https://rocklighting.com/blogs/news/wet-damp-dry-location-ratings-explained 2026-09-28T14:38:44-07:00 weekly