In most cases, you can bring an outdoor rated fixture indoors without any trouble, but the reverse isn’t true: an indoor fixture should never sit somewhere exposed to rain, snow or damp air. Before you install anything, check the fixture’s location rating and confirm it carries the right Canadian approval mark. Heat buildup and brightness are the two things that most often catch people off guard when a fixture moves between settings.
TL;DR:
- Use damp rated fixtures under covered porches, but choose wet rated fixtures for open entries, exposed soffits, decks, and locations receiving direct rain or snow.
- For direct spray in a shower, treat IP65 as the practical minimum; IP44 suits light splashing, while IP67 can withstand brief submersion.
- If a listing omits its location rating, treat it as dry rated until the seller confirms the specification, and check for a Canadian approval mark.
- When bringing an outdoor fixture indoors, check clearance and maximum wattage, then use a lower output LED bulb if the light overwhelms the room.
- For outdoor string lights, use a GFCI outlet with a weatherproof cover designed to stay closed while a cord is plugged in.
Table of Contents
- What fixture ratings mean: dry, damp and wet
- Can outdoor fixtures go indoors, and can indoor fixtures go outside?
- How to find and read a fixture rating on a product page
- Coastal humidity, freeze-thaw, snow and road salt
- Installation and bulb choices that prevent overheating
- Montreal Lighting & Hardware guidance on damp vs wet ratings
- Canadian approval and code context for fixture installation
- A note from our team on rating mix-ups
- Let us confirm your fixture’s rating before you buy
- FAQ
- Sources
What fixture ratings mean: dry, damp and wet
Every fixture is built and tested for a specific location, and that location tells you everything about where it’s safe to hang it. A dry location rating means no moisture at all, ever, so this covers most living rooms, bedrooms and hallways. A damp rating allows for occasional condensation or brief moisture exposure, think covered porches, carports or a bathroom that gets steamy but isn’t in the direct line of a shower. A wet rating means the fixture can handle direct rain, snow or spray, which is what you want for anything mounted on an exposed wall, an open soffit or near a pool.
Alongside location ratings, you’ll often see an IP code, like IP44 or IP65. IP ratings describe how well a fixture resists solids and water, with the first digit covering dust and debris and the second covering moisture. An IP44 fixture tolerates light splashing, which suits a covered entryway. IP65 and IP66 fixtures are dust tight and can handle direct water jets, making them a sensible baseline for anything fully exposed to weather. IP67 goes further still, built to survive brief submersion, which matters for landscape or pathway lighting near standing water.
Pro Tip: For shower enclosures or anywhere water sprays directly onto a fixture, treat IP65 as the practical minimum rather than the exception.
IK ratings are a separate scale that measures impact resistance rather than moisture resistance. The IK scale runs from IK00 to IK10, with higher numbers corresponding to greater resistance to knocks from falling branches, hockey pucks or wind-blown debris.
A few quick thresholds help translate all of this into decisions:
- A covered porch with a roof overhead usually calls for a damp rating at minimum.
- An open entryway with no overhead protection needs a wet rating.
- Exposed soffits, decks and walkways facing prevailing wind and rain should use fixtures with appropriate IP ratings.
- Anywhere debris or impact is likely, such as near a driveway or a kids’ play area, benefits from providing impact resistance too.
Can outdoor fixtures go indoors, and can indoor fixtures go outside?
Outdoor fixtures are generally built to a higher standard than indoor ones, with sealed housings, corrosion resistant hardware and weather tested finishes. Bringing one indoor is usually fine, and it’s a common move for anyone who likes the look of a lantern style sconce in an entryway or mudroom. The exceptions worth knowing:
- A fixture designed for open-air cooling can trap heat when installed in a fully enclosed ceiling box, so check the fitting style before mounting it that way.
- High-wattage outdoor floodlights are built to dissipate heat outside and can pose a fire risk indoors if the wattage isn’t reduced.
- Oversized outdoor fixtures sometimes throw more light than a room needs, so swap in a lower-lumen LED bulb when you bring one inside.
The reverse direction is far less forgiving. An indoor-rated fixture has no sealed gasket, no drainage path and no corrosion-resistant wiring, so moisture gets into the socket and wiring compartment quickly. Outdoor receptacles and fixtures must be marked suitable for wet or damp locations, and installing an unrated fixture outside can be both a safety issue and a code violation.
Pro Tip: When converting an older outdoor fixture to LED, confirm the maximum allowable wattage on the fixture’s label first. LED bulbs run cooler than incandescent or halogen, which helps, but the fixture housing still has its own heat limit.
How to find and read a fixture rating on a product page
Reading a spec sheet takes less time than most people expect once you know what to look for.
- Check the location rating first: dry, damp or wet, usually listed near the top of the specifications.
- Look for the IP code, written as IPXX, and match the second digit to your exposure level.
- Note the IK rating if the fixture will be mounted somewhere impact is possible.
- Confirm the voltage and wattage limits, especially if you’re planning an LED conversion.
- Look for a Canadian approval mark, since equipment sold here needs to meet recognized safety standards before installation.
This information typically sits in the specifications tab alongside dimensions and bulb type on product pages, and lighting guides walk through how to interpret marks like CSA and ETL in more depth. If a listing doesn’t show a location rating at all:
- Treat the fixture as dry-rated only until you confirm otherwise.
- Contact the seller or manufacturer directly for the spec sheet before installing it anywhere damp or wet.
- Avoid guessing based on appearance alone, since a fixture can look weatherproof without carrying any moisture protection.
Guides on CSA approved lighting and UL vs ETL both cover how these marks appear on packaging and product pages, which helps when a listing is light on detail.
Coastal humidity, freeze-thaw, snow and road salt
Canadian conditions put real stress on fixtures that a mild climate never would. Coastal humidity and salt air accelerate corrosion on anything less than fully sealed, so homes near the coast or along winter-salted roads benefit from higher IP ratings and finishes like powder-coated aluminum or solid brass rather than untreated steel.
Freeze-thaw cycles are just as hard on seals and gaskets. Water that gets into a housing and then freezes expands, which can crack a lens or loosen a seal over a single winter. A higher IP rating reduces how much moisture gets in to begin with, which is the main defence here.
Heavy snow adds its own wrinkle: a fixture mounted where snow can pile against it or drip directly onto it needs both a wet rating and a mounting position that lets water run off rather than pool.
- Inspect seals and gaskets each spring for cracking or gaps.
- Rinse off road salt residue on fixtures near driveways or walkways.
- Touch up any finish wear before bare metal is exposed to the weather.
- Reposition fixtures that collect snow against the housing where possible.
Pro Tip: A fixture rated IP65 or higher with a corrosion-resistant finish handles a Canadian winter far better than a lower-rated fixture in a sheltered spot, since the rating addresses both water and material durability together.
Installation and bulb choices that prevent overheating
Getting the bulb and the mounting right matters as much as getting the rating right.
- Choose LED over incandescent or halogen for any outdoor fixture, since LEDs run cooler and reduce the risk of heat buildup in enclosed housings.
- Leave the clearance the manufacturer specifies around enclosed ceiling mounts, since trapped heat is the main cause of premature failure indoors.
- Match the bulb’s lumen output to the room, since outdoor-rated fixtures often ship with higher lumen expectations than an interior space needs.
- For any outdoor receptacle powering string lights or a temporary fixture, use a GFCI outlet with a while-in-use weatherproof cover rather than a flip-lid cover, since the in-use style keeps moisture out while a cord is plugged in.
- Confirm the fixture’s maximum wattage before swapping bulbs, since exceeding it can damage the socket even with a cooler-running LED.
Anyone managing outdoor cord runs for seasonal lighting or a powered feature might also find value in a cable management approach built for Canadian conditions, since the same weatherproofing logic applies to any exposed outdoor cord.
Montreal Lighting & Hardware guidance on damp vs wet ratings
We get the same question from homeowners and renovators again and again: what’s actually the difference between damp and wet, and does it matter for my space? Our general rule is simple. A covered, three-sided space like a porch or carport usually calls for damp-rated at minimum, while anything with open sky above it, exposed to coastal salt air, or facing heavy snow accumulation needs a wet rating and a higher IP number to match.
A few examples from catalogue listings show how this plays out:
- The Capsule One Light Outdoor Pendant suits a covered porch or entry where you want a hanging fixture with a clean, modern profile.
- The Windsor Outdoor Wall Mount works well flanking a front door or garage, a classic wall-mounted option for fully exposed walls.
- The Jewel LED Outdoor Wall Sconce pairs an efficient LED source with a sealed housing, a good fit for decks and patios that see direct weather.
Browse our outdoor wall lights, outdoor ceiling lights and bath vanity collections to compare specifications side by side, and reach out any time to confirm a rating before you buy.
Canadian approval and code context for fixture installation
Equipment sold and installed in Canada needs to carry recognized approval marks, and this applies to most outdoor luminaires. Ontario’s Electrical Safety Authority bulletins set out approval expectations for outdoor LED luminaires, including wiring within the assembly itself, and similar provincial authorities apply comparable standards elsewhere.
Not every piece of lighting equipment falls under the same approval scope. ESA guidance on exceptions notes that some battery-powered or limited-supply items are excepted from full product approval, but most mains-connected luminaires and LED fixtures remain within scope and need to carry an approval mark before installation.
For a renovator or homeowner, the practical takeaway is to look for a recognized mark on the fixture itself or its packaging rather than assuming a product is compliant because it’s sold locally. This matters most for outdoor installations, where moisture exposure raises the stakes if wiring or housing isn’t properly rated and approved. Our guide to CSA approved lighting breaks down what these marks look like and why they matter before you commit to a fixture for an exposed location.
A note from our team on rating mix-ups
We see the same scenario often: someone falls for a lantern-style fixture online, installs it over an exposed front step, and it clouds over or corrodes within a season because it was never rated for direct weather.
Getting the rating right the first time saves a return trip and extends the life of the fixture by years. If you’re working through a renovation and want a second opinion, our trade program is there for design professionals, and anyone can book an appointment to walk through specifications together.
— Montreal Lighting & Hardware
Let us confirm your fixture’s rating before you buy
We can check the dry, damp or wet rating, the IP and IK numbers, and the recommended bulb type on any fixture in our catalogue before you commit to a purchase, so you’re never guessing at a spec sheet alone.
A few starting points if you’re ready to look:
- Browse our outdoor wall lights and outdoor ceiling lights for porch, entry and deck fixtures.
- Check our bath vanity collection for fixtures suited to steamy or splash-prone bathrooms.
- Explore our full ceiling, wall and table lighting selection for interior spaces.
If you’d rather see finishes and fixtures in person, book an appointment at our showroom and we’ll help you match the right rating to your space.
FAQ
What are the differences between exterior and interior lighting?
Exterior lighting is built with sealed housings, weatherproof gaskets and corrosion-resistant hardware to withstand rain, snow and temperature swings, while interior lighting assumes a stable, dry environment. The two also differ in finish durability, since outdoor fixtures use materials chosen to resist rust and fading over years of exposure.
What are the different types of porch lights?
Common porch light styles include hanging pendants, wall-mounted sconces and flush-mount ceiling fixtures, each suited to different porch layouts. A covered porch typically needs at least a damp rating, while an open or exposed entry needs a wet rating to handle direct weather.
What is the rule of thumb for outdoor lighting?
The general rule is to match the fixture’s rating to its exposure: damp-rated for covered, sheltered spots and wet-rated for anything facing open sky or direct weather. It’s also worth checking for a recognized Canadian approval mark before installation.
Can LED outdoor lights get wet?
A wet-rated LED outdoor fixture is built to handle direct rain and snow, since the rating accounts for sealed wiring compartments and moisture-resistant housings. Always confirm the fixture carries a wet rating specifically, since not all outdoor LED fixtures are rated for the same level of exposure.
Sources
- ESA bulletin: Solar-powered signs, flashers and LED luminaires (product approval guidance)
- IK and IP testing for lighting products
- EPCOR — Home electrical safety (outdoor receptacles and weatherproofing)
