Emergency signaling equipment has gotten complicated with all the options flying around. As someone who’s stocked emergency kits for boats and vehicles for years, I learned everything there is to know about road flares and their lifespan. Today, I will share it all with you.
Types of Road Flares
There are different types of road flares available:
- Traditional Pyrotechnic Flares
- LED Electronic Flares
- Chemical Light Sticks
Traditional Pyrotechnic Flares
Probably should have led with this section, honestly. Pyrotechnic flares use a chemical reaction to produce bright, burning light. These are the most common and have been widely used for many years. A typical pyrotechnic flare burns for around 15 to 30 minutes, with the exact duration depending on the specific brand and model.
These flares have a shelf life. Manufacturers usually suggest three to five years. The performance can degrade over time due to moisture and other factors, and exposure to extreme temperatures can also affect their reliability.
LED Electronic Flares
LED flares are a modern alternative that use battery power to produce bright, flashing lights. Such flares are reusable and tend to be more durable. The run time for these flares can vary, often lasting from 20 to 60 hours on a single set of batteries.
That’s what makes LED flares so practical for regular use. They have a longer shelf life compared to pyrotechnic flares, and proper maintenance like checking and replacing batteries regularly can extend their usability. LED flares are less affected by weather conditions.
Chemical Light Sticks
Chemical light sticks are another option. These work by mixing two chemicals inside a plastic tube to produce light. They usually last for 8 to 12 hours once activated.
The shelf life for chemical light sticks is usually four to five years. Exposure to sunlight and extreme temperatures can shorten their lifespan, so keep them stored in a cool, dry place.
Factors Affecting Lifespan
Several factors influence how long a road flare lasts or remains effective:
Storage Conditions
Proper storage is crucial. Flares should be kept in a cool, dry place. Avoid areas with high humidity to prevent degradation. For pyrotechnic flares, keep them away from ignition sources.
Temperature
Extreme temperatures can impact effectiveness. Heat can cause chemical degradation. Cold temperatures can make batteries less effective in electronic flares. Always store flares within the recommended temperature range.
Exposure to Moisture
Moisture can cause significant damage, especially to pyrotechnic flares. It can affect the chemicals inside and make them less reliable. Electronic flares can also suffer from corrosion if exposed to moisture.
Signs Your Flares Need Replacing
Check your flares periodically. Replace them if you notice:
- Damage to the packaging
- Corrosion or rust on the external surface
- Discoloration or leakage of chemicals
- Expired shelf life date
- LED flares not lighting up properly
Proper Disposal
Disposing of old or expired road flares should be done responsibly. Pyrotechnic flares contain chemicals that can be hazardous. Do not throw them in regular trash bins. Contact local hazardous waste disposal services for proper guidance.
For LED flares, consider recycling the electronic components. Many communities have electronic recycling programs. Chemical light sticks should be disposed of according to local regulations.
The Bottom Line
Road flares are invaluable for safety. Knowing their lifespan and maintaining them properly ensures they work when you need them. Regular checks and proper storage can make a significant difference in whether your emergency equipment functions in an actual emergency.
