As LED lighting generally uses low voltage DC (constant current) power supply, if ac 220V mains power supply is used, a special transformer is required to output low-voltage DC power (such as 12V, 24V, etc.) and the LED driver is used to drive the LED lamp, that application are below :

  1. Street lighting systems in cities and towns (including solar lighting systems);
  2. Tunnel and underground car park (including underground shopping centre);
  3. Lighting of transportation vehicles (internal and partial external lighting of automobiles, trolleys, ships, airplanes, etc.);
  4. LED lighting system in large public places, such as railway stations, subway stations, airports, large supermarkets, large department stores, buildings and hospitals, etc.;
  5. LED lighting project in non-power zone.

Common-Cathode CC 3014AG 7-Segment digit 3014AG LED Common-Anode CA 3014BG Display 3014BG 0.30 inch
Common-Cathode CC 3104AB 7-Segment digit 3104AB LED Common-Anode CA 3104BB Display 3104BB 0.30 inch

The unit price of 1W white LED
Home applications of LED lighting
12V and 24V LED lamp application
LED lighting power supply system is complex
Chinese lighting market is huge
Color and brightness of LED in different occasions
Leds Luminous Intensity Unit is Candela
LED luminous flux in unit of Lumen
LED Luminance refers to the light intensity density
The color rendering of LED may be different