Retrofitting existing recessed can lights with LED inserts is a practical method for improving energy efficiency and updating the appearance of a home’s exterior lighting. This upgrade involves replacing the old bulb and trim with a unified LED module that fits directly into the existing housing. The appeal of this conversion lies in the significantly lower energy consumption of LED technology, which often uses 75% less power than traditional incandescent bulbs, alongside their impressive lifespan of up to 50,000 hours. The process is a straightforward project for homeowners looking to modernize their outdoor spaces while realizing long-term cost savings.
Defining Outdoor LED Retrofit Kits
An LED retrofit kit is a self-contained unit that includes the LED light source, an integrated trim, and a standard E26 screw-in connector, allowing it to be installed directly into a conventional recessed can. For exterior applications, these kits must be specifically manufactured to handle exposure to the elements, unlike standard indoor models.
The most important specification for any outdoor kit is its location rating, which must be clearly marked as “Wet Location Rated”. This designation ensures the fixture is constructed to withstand direct contact with rain, snow, or excessive condensation without failing or creating a safety hazard. A Wet Location rating is a mandatory requirement for fixtures installed in areas where they are fully exposed to weather, such as an open soffit. Conversely, kits labeled “Damp Location Rated” are only appropriate for protected outdoor areas, like under a covered porch where direct water contact is unlikely. Many quality outdoor kits also feature an Ingress Protection (IP) rating, with IP44 or higher indicating a strong level of defense against solid objects and water spray. Choosing a kit with the correct weather rating is the baseline requirement for a safe and durable outdoor installation.
Key Selection Criteria for Outdoor Fixtures
Before purchasing a retrofit kit, compatibility with the existing recessed can housing must be verified, primarily by matching the physical diameter of the opening, such as a 4-inch or 6-inch size. The kit’s performance characteristics should also be carefully considered to achieve the desired outdoor ambiance and functionality. Brightness is measured in lumens, and for general outdoor pathway or security lighting, homeowners often select kits with outputs ranging from 750 to over 1,000 lumens.
The light’s quality is determined by its Correlated Color Temperature (CCT), expressed in Kelvin (K), which defines whether the light appears warm or cool. Warmer temperatures, typically between 2700K and 3000K, produce a soft, yellowish light that creates a comfortable, inviting atmosphere often preferred for residential exteriors. Cooler temperatures, such as 4000K or 5000K, project a brighter, whiter light that is more suitable for task lighting or security applications.
Additionally, considering the beam angle is useful, as a wide flood angle spreads light across a large area, while a narrow spot angle concentrates the illumination for highlighting architectural features. Finally, if the existing fixture is connected to a dimmer switch, the new LED kit must be specifically listed as dimmable and ideally compatible with the dimmer type installed to prevent flickering or damage.
Installation Process for Recessed Cans
The installation process begins with an absolute focus on electrical safety, which requires switching off the power to the fixture at the circuit breaker panel. A non-contact voltage tester should be used to confirm that no electricity is flowing to the wires inside the can before proceeding. Once safe, the old incandescent bulb is unscrewed, and the existing trim ring is carefully removed from the ceiling opening, often by squeezing or releasing simple clips.
The LED retrofit kit is then prepared by connecting its screw-in adapter, often called a pigtail, to the existing socket inside the can housing. After securely screwing the adapter into the socket, the wiring is tucked neatly back up into the can, leaving room for the new module. The retrofit module is secured into the can using either friction clips or torsion springs, which are squeezed together and guided into receiver brackets inside the housing. The module is then pushed upward until the integrated trim ring sits flush and tight against the ceiling surface, completing the installation.
Protecting Your Investment Outdoors
Long-term durability of outdoor lighting depends on managing moisture intrusion and ensuring proper electrical grounding. Although permanently wired exterior light fixtures do not inherently require a Ground Fault Circuit Interrupter (GFCI) protection, it is a recommended safety measure. This protection can be provided by a GFCI circuit breaker to rapidly shut off power if a ground fault is detected, which is especially relevant in wet environments where the risk of electrical shock is heightened.
To prevent water from seeping into the can housing and attic space, sealing the fixture against the ceiling material is a sound practice. Using an exterior-grade silicone sealant or caulk around the perimeter of the retrofit kit’s trim ring creates a waterproof barrier. When applying the sealant, it is important to leave a small, unsealed gap at the very bottom of the trim ring to function as a weep hole, allowing any condensation or moisture that manages to get inside to drain out. Using a durable silicone product, rather than acrylic caulk, provides better flexibility and resistance to weather-related expansion and contraction.