Solar street lamp controller in solar street lamp products commensurate with the function of the brain, control the light source on and off, corresponding to different light source controller choice is not the same. LED street lamp it is a kind of efficient solid state light source based on semiconductor PN junction formed with weak electric energy can emit light, in a certain forward bias voltage and injection current, injected into the hole in the P region and injected into the N region of electrons in the diffusion to the active region after radiation compound and emit photons, the electric energy directly into light energy.
It is a solid cold light source, with environmental protection, no pollution, less power consumption, high light efficiency, long life and other characteristics, therefore, LED street lighting will become the best choice for energy-saving transformation. Solar street lamp controller is divided into two varieties of boost and buck. Here's a detailed explanation of their differences.
Solar street lamp booster controller
Booster controller is directly through the DC-DC circuit low voltage 12V or 24V directly up to 30V-40V, so the booster controller light source will take 10 series and more than the method of connection, was widely used in the market 30W solar street lamp is characterized by high voltage and low current, the output voltage of the booster controller is greater than the input voltage
Solar street lamp step-down controller
The step-down controller is through the CIRCUIT of DC-DC voltage fall to 12V to 10V or so, so step-down controller light source generally take three series and more methods connected, the power of 21W solar street is characterized by low voltage, but the current is too large. Solar street lamp LED lamp head wire lithium control battery white cap separated, wiring attention to use electrical tape wrap. The output voltage of the buck controller is lower than the input voltage
Summary contrast: buck controller input voltage is greater than the output voltage, boost controller input voltage is less than the output voltage. LED street lamp it is a kind of efficient solid-state light source based on semiconductor PN junction formed with weak electric energy can emit light, in a certain forward bias voltage and injection current, injected into the hole in the P region and injected into the N region of electrons in the diffusion to the active region after radiation compound and emit photons, the electric energy directly into light energy.
It is a solid cold light source, with environmental protection, no pollution, less power consumption, high light efficiency, long life and other characteristics, therefore, LED street lighting will become the best choice for energy-saving transformation. Light source power within 30 watts to advocate customers to use the step-down controller, light source power in more than 30 watts to advocate customers to use the booster controller, the above is the difference between the two kinds of solar street lamp controller, I hope to have a help in the choice of solar street lamp.
