Pillar guide

Lighting & Smart Home

Lighting and controls are where electrical work is most visible — and where good planning makes the biggest everyday difference. This guide covers recessed lighting layout, LED retrofits, the neutral-wire question for smart switches, outdoor lighting, and pre-wiring for automation.

Updated 2026-10-15

Layer the light

Good lighting design combines ambient light (recessed or ceiling fixtures), task light (under-cabinet, vanity, reading), and accent light (art, landscape). Putting each layer on its own dimmable control is what makes a room feel right at different times of day.

Controls are part of the wiring

Smart switches, scene controllers, and occupancy sensors depend on what's in the wall box: a neutral conductor, enough box volume, and the right wiring between three-way locations. Planning those details during construction or remodeling is far cheaper than retrofitting later.

Neutral in every switch box (required in most new construction)
Deep boxes for smart devices and multi-gang dimmers
Dimmer-compatible LED fixtures and drivers
Conduit or pull strings for future low-voltage runs

Go deeper

Planning Recessed Lighting: Layout, Sizing & RatingsSpacing rules of thumb, IC-rated and airtight housings, canless LED wafers, dimmer compatibility, and color temperature choices.LED Lighting Retrofits: Bulbs, Fixtures & SavingsLamp swaps vs fixture replacement, dimmer flicker, color rendering, and how to estimate payback on an LED retrofit.Smart Switches & Neutral Wires: What You Need to KnowWhy many smart switches need a neutral, how to check your boxes, no-neutral options, and when to call an electrician.Outdoor & Landscape Lighting: Low-Voltage vs Line-VoltageLow-voltage landscape lighting vs 120V fixtures, wet-location ratings, GFCI, burial depths, and timer and photocell controls.Wiring a Home for AutomationStructured cabling, deep boxes, neutral everywhere, conduit for future runs, and how to pre-wire a new build or remodel for smart home tech.

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Frequently asked questions

Do I need an electrician to install smart switches?

Replacing a switch is within many homeowners' skills where local rules allow, but missing neutrals, three-way circuits, and crowded boxes are common. An electrician can also verify the box isn't overfilled.

What color temperature should I choose?

2700K–3000K feels warm and suits living spaces; 3500K–4000K suits kitchens, garages, and workspaces. Keep one color temperature per room.

Are LED fixtures worth it over LED bulbs?

Integrated LED fixtures often have better optics and slimmer profiles. Bulbs are easier to replace. Both save substantially over incandescent.