Lighting

The carcel is a former French unit for measuring the intensity of light. The unit was defined in 1860 as the intensity of a Carcel lamp with standard burner and chimney dimensions, which burnt colza oil (obtained from the seed of the plant Brassica campestris) at a rate of 42 grams of colza oil per hour with a flame 40 millimeters in height.

British armored spotlight vehicle

unit of measurement

tall pole with lighting attached to the top pointing towards the ground

multi-pole electrical connector between a towing vehicle such as a car or truck and a trailer

property of light stimulus related to human perception

lighting intended to deter or detect trespassing or other criminal activity occurring on a property or area