The structure of the led street light is not complicated. After splitting, there are several parts, as follows:

1. LED light source (1W-200W)

2. Aluminum alloy heat sink aluminum sheet

3. There is also LED constant current source (power supply)

4.led lamp housing

At present, the LED street lights on the market are mainly divided into two categories. One is to use ordinary street lamp shells to install an aluminum plate inside and arrange a lot of 3W or 1W lamp beads with lenses. The other is to use an open die-casting integral shell to dissipate heat. The first type of heat dissipation problem has not been solved, and the second type is more expensive. As for other fans, heat pipes, heat conducting films, etc., heat dissipation needs to be carefully checked for authenticity.

Internally integrated 650V power tube, primary feedback constant current control, no secondary feedback circuit, no transformer auxiliary winding detection and power supply, LED open circuit voltage can be adjusted by external resistance, chip ultra-low operating current wide input voltage ±6% LED output current accuracy , LED short circuit/open circuit protection CS resistance short circuit protection, chip power supply undervoltage protection, overheating adjustment function adopts SOP-8 package.