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How the Cold Weather Affects LED Lighting/Ballasts
LED vs. Traditional Lamps in Cold Weather
Some common issues arise with traditional and fluorescent bulbs regarding cold-weather performance. LEDs are overall designed to be more durable, long-lasting and efficient than other bulbs, and are generally a better choice for indoor and outdoor applications. This is especially true during the winter months when most bulbs are easily affected by drops in temperature. This is particularly important for commercial lighting systems in Maryland, D.C., Virginia, where winters can be cold. Read on for more on the specific differences between LED and traditional bulb performance in cold temperatures.
Efficiency
Traditional lights often take some time to warm up and switch on in the winter. This can be very inconvenient, especially in commercial settings when people need light to be able to work and function safely. Facilities managers and building owners seeking efficient lighting solutions in Virginia and Maryland often switch to LEDs to avoid this problem.
Unlike traditional lighting, LEDs actually generally perform well in cold temperatures and provide instant-on illumination. However, every LED fixture and driver has a specified operating-temperature range that should be checked before the product is used in an especially cold environment. LEDs don’t require a lot of power to produce light, and they provide optimal lighting for what they cost to power. Because they provide brighter lighting than traditional bulbs overall, they are the best choice for darker winter conditions. Businesses across D.C. and Maryland looking to improve energy efficiency during colder months may find LED upgrades particularly useful when replacing older exterior or unconditioned-space lighting.
Longer Lifespan
LED technology has extended the life expectancy of bulbs and fixtures, saving commercial space owners time and money they would have otherwise spent on replacements. Cold weather tends to wear on electric and traditional bulbs, especially when they’re directly exposed to cold weather. This includes external fixtures, like streetlights, decorative, and security lighting. Their excess emission of heat causes them to burst due to the drop in temperature. LED lights aren’t subject to these problems since they don’t emit heat and withstand transitions between hot and cold.
Having to replace burnt-out bulbs with new ones, especially in a commercial space in which hundreds of bulbs and fixtures may be installed, can be costly and inconvenient. However, rated life varies significantly by product, driver, operating temperature, operating hours, and other conditions. Rather than assuming every LED will provide a specific number of operating hours, facility managers should review the manufacturer’s rated life and warranty for the actual product being considered. Upgrading your lighting to LED before the colder weather months is a smart choice that will undoubtedly save you a lot of time and money.
Mercury Vapor
The biggest issue with traditional bulbs in cold weather is mercury. The lower the temperature drops, the lower the mercury vapor pressure. Therefore, there’s less mercury available to start the light. Light output is lower because the mercury does not emit the optimum amount of UV energy for the phosphor to convert to visible light. Fluorescent lights work by ionizing mercury vapor in the tube. Special ballasts and bulbs for fluorescent fixtures are available, but they can be expensive and need to be replaced more often.
On the other hand, LEDs don’t contain mercury, which in itself makes them a more durable choice for outdoor lighting. It doesn’t have any effect on life expectancy, and output is unaffected. However, it’s essential to check with your distributor regarding how low temperature is rated for just in case. Mercury-free lighting is especially important in environmentally sustainable building designs and green construction projects.
LED Drivers vs. Fluorescent Ballasts in Cold Weather
LED drivers are a key piece of any LED installation. LEDs require drivers to regulate the electrical power supplied to the light source. Fluorescent lamps, by comparison, rely on ballasts to start the lamps and regulate current during operation.
Cold-weather performance therefore depends on more than the LED chips themselves. The driver needs to be rated for the temperatures it will experience. Using a driver below its specified minimum ambient temperature can affect performance and potentially its service life.
The same principle applies to emergency lighting equipment. Emergency LED drivers and batteries may have temperature limitations that differ from those of the primary fixture. Products specifically designed for extended-temperature applications are available for locations such as parking garages, exterior stairways, cold-storage facilities, outdoor canopies, and other demanding environments.
There is no single temperature range that applies to every LED fixture or driver. Some products are specifically designed for very low temperatures while others are not. Check the manufacturer’s specifications for the exact fixture, driver, controls, and emergency components being used.
LED technology is also compatible with smart lighting controls and motion sensors, making LED systems a useful option for modern commercial lighting projects. However, sensors and controls should also be checked for their rated operating temperatures when installed outdoors or in unconditioned spaces.
For businesses in D.C. and Maryland needing cold-weather-rated commercial lighting, selecting equipment based on its actual environmental ratings is crucial for dependable year-round performance.
Lumen Output
Lumen, or the measurement unit of the quantity of visible light produced by a lightbulb, expresses the performance of a light source. Overall, the brighter the light, the higher its lumen rating. Installed in cold applications, studies have shown that LED degradation reduces and lumen output improves. Modern LEDs are outfitted with special features that prevent any heat-related lumen depreciation, such as heat sinks that channel excess electrical heat and keep it away from the driver and the LED itself.
Fluorescent and incandescent bulbs are measured in watts, which measures power usage rather than brightness. Due to their higher efficiency, LED lights output the same amount of light as a halogen lamp with half the amount of energy. For example, an LED that is using 6.5W will produce the same amount of light as a 50W fluorescent light source. LED light output and efficacy (lumens per watt) increases as the temperature drops, making them the best choice for outdoor applications.
Low Maintenance
Upgrading your fixtures to LEDs will eliminate the need for replacing your bulbs every six months. This is especially important during the harsh weather months of winter when spending time on a ladder can be incredibly difficult. Exterior fixtures are often tricky or even dangerous, in some instances, to access in the first place. Adding frigid conditions or snow to the situation makes changing blown out bulbs a hassle that can easily be avoided. Wouldn’t you rather change an LED T8 that is encased in plastic as opposed to a fluorescent T8 that is encased in glass, especially on a cold day? While the glass itself isn’t harmful, it does create the same hazards associated with cleaning up glass. Some fluorescent lamps use an external coating of polycarbonate to provide a shatter‐resistant coating, but that’s in the minority. Outfitting your outdoor space with LEDs before the cold weather season will ensure you won’t have to worry about the hassle of replacing one that has burned out, as traditional bulbs tend to do.
LEDs are increasingly favored in low-maintenance lighting strategies for commercial offices, property management portfolios, and multi-site retailers. Their ease of use, reliability, and safety benefits make them a leading choice year-round.
Where Cold-Weather LED Lighting Matters Most
Cold-weather performance is particularly important anywhere lighting is exposed to outdoor temperatures or installed in an unconditioned environment. Commercial applications may include:
- Parking lots and parking garages
- Exterior stairways
- Building entrances and canopies
- Loading docks
- Warehouses and unconditioned storage areas
- Walkways and building perimeters
- Security lighting
- Cold-storage and freezer facilities
- Outdoor retail and commercial areas
In these environments, choosing an LED fixture should involve more than checking wattage and lumens. Facility managers should review the fixture’s rated ambient-temperature range, driver specifications, environmental rating, controls, emergency components, mounting conditions, and expected exposure to moisture, snow, ice, or other weather.
Contact Us
If you’re interested in upgrading your external or internal lighting scheme to LEDs, contact Bay Lighting today. We proudly serve a range of clients in Maryland, D.C. and Virginia as their premier lighting solutions supplier. We also offer specification, installation, retrofitting, recycling, and maintenance services. Our team stays on top of lighting trends, energy codes, rebate programs, and smart lighting system integrations to help you make informed decisions.
Frequently Asked Questions About LED Lighting in Cold Weather
Do LED lights work in freezing temperatures?
Many LED products perform very well in freezing temperatures, but the exact minimum operating temperature depends on the fixture and its components. Check the manufacturer’s specified ambient-temperature range rather than assuming every LED product has the same cold-weather capability.
Do LEDs need to warm up in cold weather?
LEDs generally provide instant-on illumination and do not require the same type of warm-up associated with some traditional lighting technologies. This is one reason LEDs can be useful for parking areas, warehouses, exterior lighting, and other cold environments.
Does cold weather make LED lights brighter?
LED light output can improve as temperatures decrease within the product’s acceptable operating range. However, the complete lighting system still needs to remain within the temperature limits specified by the manufacturer.
Can cold weather damage an LED driver?
It can if the driver is operated outside its specified temperature range. The driver, not just the LEDs themselves, should be evaluated when selecting a fixture for extremely cold conditions.
Why do fluorescent lights struggle in cold weather?
Fluorescent lamps are temperature-sensitive, and low temperatures can reduce light output and create starting difficulties depending on the lamp and ballast. Cold-temperature fluorescent equipment exists, but it must be selected specifically for the application.
Are LEDs good for parking garages and exterior commercial lighting?
They can be an excellent option because of their instant-on operation, controllability, efficiency, and generally good cold-temperature performance. The specific fixture still needs to be rated for the temperatures and environmental conditions it will experience.
