Why are some LEDs described as “directional,” “wide” or “vertical?
A “directional” LED lamp projects a beam over a minimum area of 20 degrees to the right and 20 degrees to the left on a horizontal plane and from 10 degrees up to 10 degrees down on a vertical plane. A “vertical” LED lamp is the same as a directional lamp, but is designed to be mounted vertically along the length of the device. The signal spread remains the same as the directional lamp. A “wide” LED lamp projects light substantially beyond 20 degrees to the right and 20 degrees to the left on a horizontal plane. The device must also project a beam over a minimum area of 5 degrees up to 5 degrees down in the vertical plane.
A “directional” LED lamp projects a beam signal over a minimum area of 20 degrees to the right and 20 degrees to the left on a horizontal plane and from 10 degrees up to 10 degrees down on a vertical plane. A “vertical” LED lamp is the same as a “directional” lamp, but designed to be mounted vertically along the length of the device. The signal spread remains the same as the “directional” lamp. A “wide” LED lamp projects light in a defined horizontal arc substantially beyond 20 degrees to the right and 20 degrees to the left on a horizontal plane. The device must also project a beam signal over a minimum area of 5 degrees up to 5 degrees down in the vertical plane.
