The transport rule states that the light emitted must be a consistent cycle of light with a frequency of 2 to 4 Hertz. A "Hertz" simply means "one cycle per second" so the light pattern must cycle between 2 - 4 times per second.

Also, the light should be fitted so that the main direction of the light emitted is approximately parallel to the ground, giving maximum visibility to others.

These are key points to consider when fitting them; will they be visible to anyone approaching them?

Whether they are driving a low MG sports car or a big truck?

And will it be visible from a reasonable distance - will it be bright enough for the conditions, but not too bright to dazzle people?

For example: if you are working in full daylight on an open road with a 100km speed limit, you need to have a lot brighter light (with something like an SAE Class 1 or E65 standard light with 3 watt LEDs) so cars can see it in the distance and can slow down in reasonable time. The contrast to this would be if you were inside a warehouse driving a forklift when people were working at closer quarters, and you could be dazzled by a very bright light.

Various configurations are available, including barlights, beacons, and directional flashing lights, and these can also have various mounting options. To help you choose what would suit your needs see this blog: What kind of Flashing Lights are Best to Suit your Application?

TransQuip has developed a range to suit the demanding conditions and current applications, and our friendly team is always keen to help you get the right light for your needs.