Lighting peg with variable pulsation rate

A lighting peg with a variable pulsation rate, comprising:

• a square outer casing provided with a solar cell and a battery, and adapted to be installed at a road intersection;
• light-emitting diodes and a photoelectric conversion element provided on each side-surface of said outer casing;
• an ambient light sensor for sensing light of a surrounding area;
• a comparator for comparing an output voltage of said solar cell with a reference voltage and providing an output;
• a pulse signal generating circuit operated by an output of said ambient light sensor so as to generate a number of pulse signals of different rates;
• wherein upon operation of said pulse signal generating circuit, said light-emitting diodes provided on all of the side surfaces being operated by one of said pulse signals having the lowest rate;
• vehicle sensors on each of said sides of said casing, each comprising said photoelectric conversion element series connected with a variable resistor, a differential circuit connected across said variable resistor, and a comparator comparing an output of said differential circuit with a reference voltage;
• and
• a control circuit comprising OR gates, each receiving outputs of a pair of the vehicle sensors on opposite sides of said casing, discriminating circuits discriminating the outputs of the OR gates, and pulsation rate control circuits which control the rate of pulsation of the light emitted from said light emitting diodes toward said road intersection in accordance with those of the pulse signals generated from said pulse signal generating circuit.