What are the requirements for Zhihai led street light?

LED light principle: LED (Light emitting diode), light-emitting diode, is made of ⅲ-ⅳ compounds, is a solid-state semiconductor devices, it can directly convert electricity into light. The LED's heart is a semiconductor chip, the semiconductor chip consists of three parts, a P-type semiconductor, in which the hole dominates, and the other end is n-type semiconductors. When the current passes through the wire to the chip, electrons and holes are pushed into the quantum well, the electrons in the quantum wells are combined with the holes, and then the energy is emitted in the form of photons, which is the principle of LED luminescence.

The wavelength of light, the color of light, is determined by the material that forms the p-n knot. High-pressure Sodium street lighting luminescence principle: High Pressure sodium lamp is the use of electricity, arc tube electrode between the two ends of arc, due to the high temperature of the arc of sodium mercury in the tube evaporation of mercury vapor and sodium vapor, the cathode emission of electrons in the process of the Yang-polar movement, the impact of the discharge of the atoms of the matter, so that its energy to generate ionization or excitation, The excitation state is then reverted to the ground state, or the ionized state becomes the excited states, then returns to the infinite cycle of the ground condition, at which point the excess energy is released in the form of light radiation, and the light is produced.
High-Power LED street lamp is a new type of illumination, which has the advantages of high brightness, good color rendering and so on, which is a kind of light emitting diode group to realize the illumination demand through the DC low voltage point. In addition, because the LED street lamp input for Low-voltage DC, can combine with the solar energy, Make the solar LED street lights become a way of future road lighting a possibility.