Recessed lighting isn’t a one-size-fits-all solution. Depending on your ceiling structure, lighting goals, and energy needs, different types of recessed lighting systems offer distinct performance, installation methods, and visual effects.
Understanding the main types will help you choose the correct fixture for every space—whether you’re aiming for ambient glow, focused task lighting, or dramatic accent effects.
1. IC-Rated vs Non-IC-Rated Housings
The housing is the component of the recessed light that gets installed above the ceiling. One of the first decisions you’ll make is whether to use IC-rated or non-IC-rated housing.
- IC-Rated (Insulation Contact): Safe to install in direct contact with insulation. These are essential for ceilings with insulation (standard in attics and upper floors). They prevent overheating and reduce fire hazards.
- Non-IC-Rated: Must maintain a minimum clearance (usually 3 inches) from any insulation. These are used in areas without insulation, such as basements or commercial spaces.
Tip: Always check local building codes—using the wrong rating can be a safety violation.
2. Airtight Recessed Lighting
Airtight (AT) housings are sealed to prevent air from leaking through the fixture into or out of the ceiling cavity. This is important for energy efficiency and for maintaining indoor air quality.
- Reduces heat loss in winter and prevents cool air loss in summer
- Improves HVAC efficiency and lowers utility bills
- Often paired with IC-rated fixtures in energy-efficient homes
3. New Construction vs Remodel Housings
Choose the housing type based on your ceiling access and project phase:
- New Construction Housings: Installed before the ceiling drywall is put up. These fixtures are mounted to ceiling joists and offer the most secure installation. Ideal for new builds and major renovations.
- Remodel Housings: Designed for existing ceilings where drywall is already in place. They’re inserted through a hole and secured with clips, making them perfect for retrofit projects.
4. Trim Styles and Functions
The trim is the visible part of the recessed fixture and greatly affects the light output, beam shape, and overall aesthetics. Here are the most common types:
- Baffle Trim: Features ridged interiors to reduce glare. Ideal for living rooms and bedrooms.
- Reflector Trim: Smooth, shiny interiors maximize light output. Great for kitchens or commercial use.
- Gimbal or Eyeball Trim: Adjustable, directional trims that let you aim the light where needed. Best for accent lighting or highlighting artwork.
- Wall Wash Trim: Includes a shield or cover that directs light across walls, perfect for galleries or textured surfaces.
- Shower Trim: Wet-rated and sealed against moisture, designed for bathrooms or outdoor soffits.
5. Size Variations
Recessed lights are available in several sizes, usually measured by the housing diameter or trim.
Size | Best Use |
---|
2-3 inches | Accent lighting, tight spaces, display cabinets |
4 inches | Task lighting, kitchens, hallways |
5-6 inches | General room lighting, large areas |
8+ inches | Commercial or industrial spaces with high ceilings |
Smaller sizes offer more precision and are less visually intrusive, while larger sizes provide broader illumination.
6. Canless Recessed Lighting
Canless recessed lights are modern, ultra-slim fixtures that do not require traditional housing or “can.” Instead, the LED light and trim are integrated into a single unit that installs directly into the ceiling with a junction box.
Benefits:
- Easier and faster to install (ideal for DIY projects)
- Low profile—fits in tight ceiling cavities
- Energy-efficient and usually dimmable
- Fewer components = lower installation cost
Great for remodels, canless lights are changing the game in both residential and commercial settings.
Choosing the Right Type for Your Project
Here’s a quick breakdown of how to match recessed lighting types to your needs:
Need | Best Type |
---|
Energy efficiency | Airtight + IC-rated |
Retrofit projects | Remodel housing or canless |
Minimal glare | Baffle trim |
Highlight artwork | Gimbal or wall-wash trim |
Bathrooms/shower | Wet-rated shower trim |
Large open areas | 6–8 inch reflector trims |
Concrete ceilings | Surface-mounted or ultra-thin canless lights |
Whether you’re lighting a cozy bedroom or a commercial showroom, there’s a recessed lighting type tailored to your needs. Choosing the right combination of housing, trim, and size ensures you achieve the perfect balance of performance, safety, and style.