Street lighting with photoelectric switch. The switch (red, top of light) is sensitive to light. As the light levels fall as the Sun sets (as seen her

---

Street lighting with photoelectric switch. The switch (red, top of light) is sensitive to light. As the light levels fall as the Sun sets (as seen here), the switch triggers the street light and turns it on. A photoelectric switch uses an LDR Â (light-dependent resistor).

---

Size: 4256px × 2848px
Photo credit: © MARTYN F. CHILLMAID/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: dependent, electric, electrical, electricity, electronics, energy, environmentally, friendly, industrial, industry, ldr, light, light-dependent, lit, night, night-time, photoelectric, physics, power, raining, resistor, resistors, saving, street, switch, technological, technology