Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

Smart Sensing and ConvenienceMotion-sensing lights utilize sensing technology to automatically detect the surrounding environment and human activity, turning on when someone passes by and turning off when no one is present. This intelligent sensing feature offers great convenience for users, eliminating the need to manually switch on lights, especially in the dark or dimly lit environments. It quickly illuminates the space, facilitating users' walking or engaging in other activities .Energy Savi

The main differences between the cold cathode and hot cathode in discharge lamps are as follows:Luminescence principle Cold Cathode: Cold cathode lamps generate electrons through glow discharge, which bombard the cathode to produce secondary electrons, thus sustaining the discharge process. The cathode current is mainly contributed by positive ions, resulting in a small current, so the cathode remains at a low temperature. Hot Cathode: A hot cathode lamp generates light by heating the cathode (u

Disadvantages of LED LightsWhile LED lights have many advantages, such as energy efficiency, long lifespan, and environmental friendliness, they also have several disadvantages. Here are the main drawbacks of LED lights:1. High Initial Cost Price: The initial purchase cost of LED lights is typically higher than that of traditional bulbs (such as incandescent or fluorescent bulbs). Although over the long term, LED lights can save money on electricity and replacement costs due to their low energy

Precautions for Wiring Solar Street Light ComponentsWiring the components of a solar street light system is a crucial task. Correct wiring ensures the system operates normally and safely. Here are some important precautions to follow when wiring solar street light components:1. Safety First1.1 Turn Off the PowerBefore Operation: Ensure that all power sources of the solar street light system are turned off to avoid electric shock accidents.1.2 Use Insulated ToolsTools: Use insulated tools for wir

The crystal in the LED emits light through the combination of electrons and holes when a voltage is applied.Principle of LuminescenceThe core of an LED is a chip composed of P-type and N-type semiconductors. When a voltage is applied, electrons and holes recombine at the P-N junction, releasing energy that is emitted in the form of light.Electronic TransitionDuring the luminescence process, electrons transition from high energy states to low energy states, with the excess energy being released i

The electrical light source which works on the principle of incandescent phenomenon is called Incandescent Lamp. In other words, the lamp working due to glowing of the filament caused by electric current through it, is called incandescent lamp.How do Incandescent Lamps Work?When an object is made hot, the atoms inside the object become thermally excited. If the object does not melt, the outer orbit electrons of the atoms jump to higher energy level due to the supplied energy. The electrons on th

In 1958, E.G. Fridrich and E.H. Wiley had has developed Tungsten Halogen Lamp by introducing a halogen gas (basically Iodine) inside the incandescent lamp. Basically, without halogen gas, incandescent lamp filament gradually losses its performance because of its filament evaporation at higher temperature of operation. The evaporated tungsten from the filament of normal incandescent lamp gets deposited inside the bulb surface gradually. Thus lumens get obstructed from its way to come out from the

An electric lamp is a conventional light emitting component used in different circuits, mainly for lighting and indicating purposes. The construction of lamp is quite simple, it has one filament surrounding which, a transparent glass made spherical cover is provided. The filament of the lamp is mainly made of tungsten as it has high melting point temperature. A lamp emits light energy as the thin small tungsten filament of lamp glows without being melted, while current flows through it.Uses of E

A Low-Pressure Sodium Vapor lamp (or LPSV lamp) is termed as a “miscellaneous discharge lamp” as it possesses some characteristics of High-Intensity Discharge (HID) lamps as well as it resembles fluorescent lamps in other areas.Basically, an LPSV lamp is a gas discharge lamp that uses sodium in an excited state to produce light. A typical LPSV lamp is shown in the figure below. The constructional features of the LPSV lamp are given below: The outer envelope is made from borosilicate glass. The i

Ahigh pressure sodium vapor lampis a type of gas-discharge lamp that uses sodium in an excited state to produce light. It is one of the most efficient types of lighting sources and has a long lifespan. It is widely used for industrial lighting and outdoor security areas, such as parking lots and roadways.What is a High Pressure Sodium Vapor Lamp?A high pressure sodium vapor lamp is defined as a lamp that operates at a high pressure (above 1 atm) and temperature (above 1000 °C) inside a transluce