When to Replace Your Recessed Light

Recessed light housings last 10 to 20 years, and LED retrofit kits extend the functional life significantly since LEDs last 25,000 to 50,000 hours. The housing is the metal can installed in the ceiling that holds the light source, socket, and trim. Over time, the housing itself rarely fails... it's the trim (the visible ring and reflector), the socket, or the wiring connections that cause problems. The two main types of housings are IC-rated (Insulation Contact) and non-IC-rated. IC-rated housings can be directly covered with insulation in the attic, which matters for energy efficiency and fire safety. Non-IC-rated housings require a 3-inch clearance from any insulation. If you have non-IC housings buried in insulation, that's a fire hazard worth addressing. Most homes built before the 1990s have non-IC housings. The biggest upgrade for existing recessed lights is LED retrofit kits. These screw into the existing socket and replace both the bulb and the trim with a single integrated LED unit. A retrofit kit turns a 65-watt incandescent can light into a 10-12 watt LED that produces the same light output, lasts 10+ years, and looks cleaner. At $5 to $15 per kit, retrofitting a house with 10 recessed lights costs $50 to $150 and saves $100+ per year in electricity. The color temperature of LEDs matters more than most people realize. 2700K (warm white) matches traditional incandescent bulbs and works well in living spaces. 3000K is slightly cooler and popular in kitchens. 4000K and above starts looking commercial and clinical. Most people prefer 2700K-3000K for residential use.

Installing an LED retrofit kit takes 3 to 5 minutes per light. Turn off the circuit at the breaker, remove the old bulb and trim, screw the retrofit kit's adapter into the socket, tuck the LED module up into the housing, and press the trim springs into the housing clips. Turn the breaker back on and you're done.

Replacing a full housing (remodel type) takes 30 to 60 minutes per light. Remodel housings are designed to install from below through an existing ceiling cutout. Turn off the circuit, remove the old housing (disconnect wiring and release the mounting clips), feed the new housing up through the hole, extend the mounting clips to grip the drywall, connect the wiring (black to black, white to white, ground to ground), and install the trim or retrofit kit.

For new installations where no recessed light exists, expect 45 to 90 minutes per light. This includes cutting a hole in the ceiling with a hole saw, running electrical cable from a switch or junction box, and installing the housing.

Tip: when retrofitting multiple lights, buy them all at once in the same color temperature and from the same brand/batch. LED color temperature can vary slightly between brands, and mixing 2700K from one brand with 2700K from another can create a noticeable difference in adjacent lights.