Size of Emergency Flares

Emergency flare sizes vary as much as the design themselves. There are flares with dimensions of 7.8 x 7.8 x 2 inches, while others are 5.8 x 4.8 x 2 inches. These are also known as road flares.


These are pieces of safety equipment that can notify people of road hazards like fallen trees, closed lanes and other potential road hazards. These are carried by fire trucks, ambulances and law enforcement officers. Motorists may also carry them as part of a car emergency kit.

Where to Buy

These can be purchased in online stores, catalogs, auto shops and stores that sell emergency equipment.


Not only are the emergency flare sizes varied, but their composition differs too. The modern flares often utilize very bright LED lights. These devices use batteries. Their lifespan will vary, but it isn’t unusual for these to last for 70 hours straight.

Many of these are waterproof. They are also robustly built to withstand various weather conditions. Although designs vary, most are colored red or yellow.

The traditional flare is made up of an insulated stick. This is filled with explosive material. When turned on, the fuse at the end will go up. This is usually turned on by activating a tab. These stay lit for 15 minutes.

Other Features

Other materials can be added to change its color. Red is the usual color, but some are yellow, green or blue. There are also safety measures included in the design. One of the most common is the spark deflector so fires are not accidentally started.

The light generated by these devices is very bright. Those powered by LED lights can be seen over 2 kilometers away. Even the traditional ones can be seen from a great distance. This is natural because they are made to be visible in less than ideal conditions.


If using old style flares, set several of them in a row. This will make them more visible for incoming vehicles. This also makes it easier to gather the material after they are used. It is crucial that they are disposed of properly. Always follow the instructions on how to use the device. This is especially true for those that use explosives.

Whatever the emergency flare sizes you select, it is not as important as the intensity of the light. Since these are widely available, there is no reason not to get one. You will never know when the time comes you will need them.

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