What is the Difference Between a P2 Rated Light and a PC Rated Light
Published 01/07/2015
Question:
Good morning, What is the difference of an SAE P2 rating vs an SAE PC rating for lights?
asked by: Greg W
Expert Reply:
We actually have a handy help article, linked to the right for you, that explains this and other helpful information on trailer lights. Below is an excerpt:
The light beam emitted from a P2 or P3 light spreads out 45 degrees to each side of its centerline for a total of 90 degrees of coverage. This beam pattern can be seen straight on, but it cannot be seen clearly from the side of the trailer. When mounted square to the front, sides, or back of a trailer, this kind of light provides adequate visibility.
The light beam emitted from a PC light spreads out 90 degrees to either side of its centerline for a total of 180 degrees of coverage. This beam pattern can be clearly seen when you are standing directly in front of the light, as well as when you are standing on either side of the light. This wide angle beam allows the light to perform not only as a front clearance light, for example, but also as a side marker light.
To perform its combined functions, a PC light must be properly mounted. Some lights are designed to be mounted at a 45-degree angle between the front and side or between the side and back of a trailer. You must mount these lights on a part of the trailer that provides this 45-degree angle. Other PC lights emit light through 2 lenses, 1 that faces toward the front or back of the trailer and the other that faces toward the side. These lights must be mounted square to the back or front of the trailer and at the outer edge so that the light will also be visible from the side of the trailer.
Product Page this Question was Asked From
Optronics Incandescent Trailer Clearance and Side Marker Light - Submersible - 2 Bulbs - Red Lens
- Trailer Lights
- Clearance Lights
- Rear Clearance
- Side Marker
- Rectangle
- Surface Mount
- Submersible Lights
- Incandescent Light
- 3-15/16L x 1-1/4W Inch
- Red
- Optronics
more information >
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