What is the Difference Between Indoor and Outdoor Lights?

Lighting products are either designed for installation inside buildings or outside. However, the difference between indoor and outdoor lights doesn’t end there. It includes variations in functionality, aesthetics, protection ratings, and more. The information in this article will help you understand the differences and make the right decisions when buying (or using) your fixtures.

Understanding Indoor and Outdoor Lights

Indoor lights are fixtures for the interior of homes, commercial buildings, and other enclosed spaces. They can be ceiling or wall lights or LED strips that you stick to surfaces. They are also typically energy-saving and designed to be visually pleasing.

The outdoor types are luminaires you install in open places. Examples include pole-mounted fixtures for driveways and streets or illumination sources for lawns and gardens. They are usually large-sized and meant to light up more expansive areas.

Indoor and outdoor lights can be different technologies: LED, incandescent, or fluorescent. They can also be bulbs, tubes—or strips if they’re LED-based. LED and incandescent lamps make the best types of lighting outdoors.

Difference between Indoor and Outdoor Lights

So, is there a difference between indoor and outdoor lights? Well, there is. Each lighting type has features to suit the usage environment, with the outdoor types having better protection against harsh conditions. The variations include the following.

Function and Features

Outdoor fixtures enhance visibility, improve security, and ensure safety. You can also use them for aesthetics. Indoor luminaires illuminate enclosed areas (rooms) to serve various functions. For instance, you can use them in the living and bedroom to create relaxation or in the kitchen for task lighting.

Another difference between indoor and outdoor lights is in their features. Fixtures for outside use have a more robust construction to withstand weather conditions. For example, they may resist rain and hailstone better or have thicker housings and wires.

Indoor fixtures are less robust since they operate in gentler conditions. However, they offer more control options, such as dimming, flashing, color changing, etc. They are also available in stunning designs, from fancy under-cabinet LED strips to luxurious chandeliers.

Installation Difference

Outdoors, you install the fixtures on poles, walls, etc. Their installation is more challenging, sometimes requiring additional materials for optimal weather protection and electrical safety. The installer must also carefully choose the location to suit illumination needs and comply with local codes.

Indoors, luminaires are less demanding to install. Protection needs are fewer, and safety requirements are already taken care of by the existing wiring in the building. Their placement can be as simple as inserting the fixture base into a socket or pressing an adhesive-backed surface against a wall.

Light Output and Efficiency

Indoor luminaires are typically less bright, mainly when you use them for accent lighting or other less demanding needs. They also tend to emit warm light that is comfortable for the eyes. Additionally, they generally consume less power than those used outside.

Outdoor fixtures are generally brighter and less efficient. They need to illuminate larger areas and are sometimes required to offer greater visibility than the indoor types. As a result, they generally have higher ratings to output more lumens.

Protection Standards and Ratings

Higher protection is the most notable difference between indoor and outdoor lights. When designed for outdoor spaces, they have unique features not found in indoor fixtures. That’s because the usage environment is harsher, and the light must withstand it.

As such, they come shielded against (or are designed to resist) heat, UV radiation, rain, snow, moisture, and dust, with varying IP ratings. Other protection features include electrical safety, housings to shield them against access by unauthorized persons, etc.

Cost Comparison

Because they are larger and put out more light, outdoor fixtures cost more than those used indoors. They also have additional construction and reinforcement or safety features that increase prices.

In comparison, fixtures for indoor use are more compact with lower power ratings. They also have a less expensive construction since they operate in rugged environments and have fewer protection features.

Common Applications of Indoor and Outdoor Lights

The application differences between indoor and outdoor lights include where to install them, the intended purpose, and the weather resistance level required. Example uses for each illumination category are listed below.

Indoor Applications

• Homes (kitchens, living rooms, bedrooms, bathrooms)
  
• Businesses (retail stores, supermarkets, restaurants)
  
• Educational institutions (schools, colleges)
  
• Office buildings
  
• Health facilities
  
• Fitness centers
  
• Religious buildings
  
• Movie theaters
  

Outdoor Applications

• Walkways
  
• Driveways
  
• Highways
  
• Streets
  
• Parking lots
  
• Lawns and gardens
  
• Recreational grounds
  
• Exterior walls of buildings
  
• Bridges, monuments, and other architectural structures
  

Can Outdoor Lights Be Used Indoors?

You can use outdoor luminaires in an enclosed space. However, this may not be a good decision in most cases. As we have seen, the most significant difference between indoor and outdoor lights is their protection level and features.

Consider, for example, installing flood lights in your living room or a chandelier in the lawn or garden. As you can see, design variations make each lighting fixture suitable for indoor or outdoor use.

Therefore, even though you can safely use outdoor fixtures inside buildings, their design may make them look odd. Depending on the lumen output, the fixture could also be too bright for such use.

We recommend using each lighting fixture in its intended environment and space. That way, you are assured of a solution that will suit your illumination requirements, including aesthetics.

What Happens if You Use Indoor Lights Outside?

A lot of things could happen. The harsh conditions would damage the fixtures or cause their lifespan and performance to drop. Some do not work well in the cold, while others are affected by extreme temperatures.

They may also fail to serve the intended purpose due to the production of insufficient light. Without ingress protection and proper insulation, moisture entry would lead to electrical hazards like shocks or fires.

Therefore, it’s not advisable to use indoor fixtures outside or in the open unless rated for use in harsh environments. They may not withstand tough weather conditions, but if you do, cover them to avoid rain, dust, or UV radiation.

You could also install them in sheltered places like patios as ceiling fittings. Ensure the wiring and the power supply system are safe for the outdoor environment. You may also want to protect the fixtures against vandalism, among other things.

Conclusion

Knowing the difference between indoor and outdoor lights is essential when buying fixtures for either use. That’s because, while both are illumination products, they have different features. They also serve various functions, among other differences, such as power output and cost. We hope this article has helped you distinguish the two options and know when to use each.