Vehicle stop lamp system

Patent Pending Red steady-burning rear lights, brighter than the rear position lamps, are activated when the driver applies the vehicle's brakes. These are called stop lamps in some countries[70][71][72][73][74] and brake lights in others. They are required to be fitted in multiples of two, symmetrically at the left and right edges of the rear of every vehicle.[7][18] Outside Northern America, the range of acceptable intensity for a stop lamp is 60 to 185 candela.[18] In Northern America, the acceptable range for a single-compartment stop lamp is 80 to 300 candela.