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Lighting Design & Installation Articles
Lighting guides covering recessed lights, dimmers, outdoor lighting, and energy-efficient fixture upgrades.
What This Category Covers
Good lighting is layered — ambient, task, and accent — and switching to LED fixtures can cut lighting energy use by up to 90%. These guides cover recessed lighting, dimming, landscape lighting, and fixture installs done to code.
Looking for the bigger picture? Explore our Lighting Installation services, or read the authoritative reference from ENERGY STAR: choosing LED lighting.
Lighting Terms Explained
- Lumens
- A measure of brightness; higher lumens mean a brighter light, regardless of wattage.
- Color Temperature (K)
- Measured in Kelvin — 2700K is warm white, 5000K is cool daylight.
- Recessed (Can) Light
- A fixture installed flush into the ceiling for clean, even ambient light.
Common Questions
How many recessed lights do I need in a room?
A common rule is to space recessed lights about every 4-6 feet and divide the ceiling height by two for spacing. An electrician confirms layout and circuit capacity before installing.
Why do my LED lights flicker on a dimmer?
Flickering usually means the dimmer is not LED-compatible. Installing a dimmer rated for your specific LED load almost always fixes it; an electrician can verify the match.
Lighting Articles
15 articles in this category

Smart Lighting Systems: Complete Guide to Connected Home Illumination
Discover how smart lighting transforms your home with automation, voice control, and energy savings. Compare systems, learn installation basics, and explore advanced features.
6 min read
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Living Room Lighting Design: Create the Perfect Ambiance
Master the art of living room lighting with layered design strategies. Learn how to combine ambient, task, and accent lighting for a space that adapts to any activity.
6 min read
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Garage & Workshop Lighting: Bright Ideas for Functional Spaces
Transform your garage or workshop with proper lighting. Learn about fixture types, light levels, placement strategies, and electrical considerations for work spaces.
6 min read
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Accent Lighting Ideas: Highlight Architecture & Create Drama
Transform your home with strategic accent lighting. Discover techniques for highlighting artwork, architectural features, and creating focal points that elevate your interior design.
6 min read
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Outdoor Security Lighting: Deter Crime & Enhance Home Safety
Protect your home with strategic security lighting. Learn about motion sensors, dusk-to-dawn lights, placement strategies, and smart security lighting integration.
6 min read
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Pendant Light Wiring & Installation: From Planning to Perfect Placement
Everything you need to know about installing pendant lights. Learn about electrical requirements, proper mounting heights, and when to call a professional electrician.
6 min read
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Dimmer Switch Installation: Types, Compatibility & Professional Tips
Learn how dimmer switches work and which type is right for your lighting. Our guide covers LED compatibility, smart dimmers, 3-way configurations, and installation best practices.
6 min read
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Home Office Lighting: Reduce Eye Strain & Boost Productivity
Create the ideal lighting environment for remote work. Learn about task lighting, monitor glare prevention, video conferencing lighting, and ergonomic light placement.
6 min read
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Bathroom Lighting Requirements: Codes, Safety & Design Essentials
Navigate bathroom lighting codes and create a safe, functional space. Learn about wet and damp ratings, vanity lighting placement, and electrical requirements for bathroom installations.
6 min read
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Ceiling Fan with Light Installation: Electrical Requirements & Best Practices
Everything you need to know about installing ceiling fans with integrated lights. Learn about electrical box requirements, wiring, controls, and when to call an electrician.
6 min read
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Under Cabinet Lighting Installation: Types, Methods & Pro Tips
Transform your kitchen with under cabinet lighting. Learn about LED strips, puck lights, and light bars, plus step-by-step installation guidance from professional electricians.
6 min read
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Kitchen Lighting Best Practices: Layered Design for Function & Style
Create the perfectly lit kitchen with our expert guide to layered lighting design. Learn how to combine ambient, task, and accent lighting for beauty and functionality.
6 min read
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LED vs Incandescent Lighting: Complete Cost & Performance Comparison
Discover the real differences between LED and incandescent bulbs. We compare energy costs, lifespan, light quality, and environmental impact to help you make the best choice.
6 min read
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Landscape Lighting Design: Create Stunning Outdoor Illumination
Master the art of landscape lighting with our professional design guide. Learn techniques for path lights, uplighting, moonlighting, and creating dramatic outdoor effects.
6 min read
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Recessed Lighting Layout Guide: Spacing, Placement & Design Tips
Learn how to plan the perfect recessed lighting layout for any room. Our comprehensive guide covers spacing formulas, placement strategies, and design tips for optimal illumination.
7 min read
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Find more helpful articles in our other categories.
EV Charging
EV charging covers the Level 2 home chargers and circuits that recharge an electric vehicle from your own garage or driveway. These guides walk Northern Virginia drivers through charger selection, the dedicated 240-volt circuit and panel capacity a home charger needs, permitting, and the install costs to expect. A typical Level 2 setup adds roughly 25 to 40 miles of range per hour of charging.
Panel Upgrades
A panel upgrade replaces an undersized or outdated electrical panel with a modern service that safely powers today's larger loads. These homeowner guides explain when an upgrade is required, how to move from 100-amp to 200-amp service, the warning signs of failing or recalled panels, and what permitting and inspection involve. Most Northern Virginia upgrades land between $1,500 and $4,000 depending on amperage and panel location.
Home Safety
Electrical home safety is the set of practices and devices that prevent shock, fire, and arc-fault hazards in a house. These guides cover GFCI and AFCI protection, smoke and carbon-monoxide detectors, overloaded circuits, aluminum wiring, and the inspections that catch problems early. Faulty wiring contributes to an estimated 45,000 home fires in the U.S. each year, which is why proactive checks matter.
Smart Home
Smart home technology connects lighting, outlets, thermostats, and security to app or voice control through reliable, code-compliant wiring. These articles explain smart switches and dimmers, whole-home automation hubs, structured low-voltage cabling, and the electrical groundwork a dependable smart home needs. Done right, a connected home can trim lighting and HVAC energy use by 10 to 15 percent.
Commercial
Commercial electrical work covers the power systems, lighting, and code compliance that keep offices, retail spaces, restaurants, and multi-unit buildings running. These articles address three-phase service, panel and subpanel design, dedicated circuits for commercial equipment, emergency and exit lighting, and the permitting and NEC inspections that commercial properties must pass. Most commercial projects in Northern Virginia must meet the National Electrical Code on a roughly three-year update cycle, so staying current protects both safety and your certificate of occupancy.
Energy Efficiency
Electrical energy efficiency is the practice of cutting wasted power through better lighting, smarter controls, and well-sized circuits. These guides cover LED retrofits, dimmers and occupancy sensors, energy monitoring, and load management that lowers your bill without sacrificing comfort. Switching from incandescent to LED lighting alone can reduce that lighting load by up to 75 percent.
Generators
Home backup power comes in two practical forms: a portable generator connected safely through a transfer switch, interlock kit, or inlet box, and a battery power station that stores electricity for silent, fuel-free, indoor-safe backup. These guides explain backfeed safety and carbon-monoxide precautions for portable generators, how battery stations from EcoFlow, Bluetti, and Anker SOLIX are sized in kWh and watts, and the electrical permitting an install requires. A transfer switch or interlock is required to connect a generator to your home safely and to code.
Seasonal
Seasonal electrical care is the year-round maintenance that keeps a home's wiring, outlets, and outdoor circuits safe through changing weather. These guides cover holiday lighting loads, storm and outage preparation, surge protection, and warm- and cold-weather inspections tuned to the Mid-Atlantic climate. A few targeted seasonal checks each year head off the outages and hazards that peak during DMV summer storms and winter cold snaps.
Local Services
Local services are the city- and neighborhood-specific electrical guides for homeowners across Northern Virginia and the greater DMV. These articles cover permitting and inspection rules by jurisdiction, common wiring issues in older local housing stock, and what to expect from a licensed electrician in your community. AJ Long Electric serves more than two dozen cities and towns across Northern Virginia, Maryland, and Washington, D.C.
Cost & Pricing
Electrical cost and pricing guides explain what common projects actually cost and the factors that move the final number. These articles break down pricing for panel upgrades, EV chargers, rewiring, lighting, and service calls, plus how labor, materials, permits, and home age affect a quote. As a benchmark, licensed electrical labor in the Northern Virginia and DMV market typically runs between $90 and $150 per hour.
Comparisons
Comparison guides weigh competing electrical products and approaches side by side so you can choose with confidence. These articles contrast options like 100- versus 200-amp service, hardwired versus plug-in EV chargers, portable generators versus battery power stations, and LED versus traditional lighting, with the trade-offs in cost, safety, and performance laid out plainly. Each comparison names the scenario where one option clearly wins so the decision is straightforward.
FAQ
This FAQ collection gives direct, in-depth answers to the electrical questions Northern Virginia homeowners ask most. The articles explain code requirements, safety concerns, project timelines, permitting, and when to call a licensed electrician, written so a homeowner can act on the answer. Every answer reflects current National Electrical Code guidance and real field experience from licensed DMV electricians.
Related Services
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