Knowledge base

Daytime Running Lights (DRL)

Daytime running lights (DRLs) are lights on the front of a vehicle that automatically turn on and off to improve visibility during...

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Headlight

A headlight is a lighting system on the front of a vehicle that provides visibility at night and in bad weather ....

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Fog lamp

A fog light is a specially designed car headlight that improves visibility in fog, rain, snow, and inclement weather . Fog lights...

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Bad weather lamps

A foul-weather light is a specially designed light that provides optimal visibility in fog, rain, snow, or poorly lit conditions . This...

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Divergence angle

The divergence angle is the angle at which a light beam or laser spreads out after leaving a source . The greater...

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Collimation angle

The collimation angle is the angle at which light rays deviate from a perfectly parallel (collimated) beam . The smaller the collimation...

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Bihemispherical reflection

Bihemispherical reflectance refers to the total amount of light reflected by a surface, regardless of the angle of incidence or the direction...

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Bilateral side lighting

Bilateral navigation lights refer to two symmetrical navigation lights on a vessel's port (red) and starboard (green) sides . These lights help...

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Masthead Light

A masthead light is a white navigation light located at the front and top of a vessel . This light is mandatory...

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Starboard Light

A starboard light is a green navigation light located on the right (starboard) side of a vessel . This light is mandatory...

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Port Light

A port light is a red navigation light located on the left (port) side of a vessel . This light is a...

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Stern Light

A stern light is a white navigation light located at the stern of a vessel . It is a mandatory navigation light...

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