How to tell if it’s incandescent or LED Flashlight?

What is led light?

LED is the abbreviation of light emitting diode in English. Its basic structure is a piece of electronic light-emitting semiconductor material, which is placed on a leaded shelf, and then sealed with epoxy resin around it to protect the inner core wire. Good seismic performance. LED flashlight generally have the advantages of small size, low power consumption, long service life, high brightness, low heat, environmental protection, and durability.

What is an incandescent lamp?

Ordinary incandescent lamps are referred to as general bulbs, also known as GLS lamps, which are the most common incandescent lamps. Typical incandescent lamps have a tungsten filament in a sealed glass bulb. This light bulb has different sizes, shapes and colors, and has many advantages, such as small size for easy use, soft light and good color rendering, can effectively express the texture and texture of materials, cheap, etc. However, it also has shortcomings, such as low light efficiency leading to high cost of use, will produce heat and increase the burden of air conditioning, exposure will produce glare, etc. Incandescent lamps are generally used in ceilings and light fixtures such as desk lamps, this light is pleasant to the senses, best suited to create a warm atmosphere. Colored incandescent lamps usually use colored glass bulbs or a colored lampshade over the lamp.

What is the difference between incandescent lamps and led flashlights?

1. Different light-emitting principle

The working principle of the incandescent lamp is that heat is generated when the current passes through the tungsten filament, and the spiral tungsten filament continuously gathers the heat, so that the temperature of the filament reaches more than 2000 degrees Celsius. When the filament is incandescent, it emits light like red-hot iron can emit light. The higher the temperature of the filament, the brighter the light emitted, so it is called an incandescent lamp. When an incandescent lamp emits light, a large amount of electrical energy is converted into heat energy, and only a very small part can be converted into useful light energy.

The most important light-emitting structure of an LED flashlight is the lamp bead, which looks small but has a very complex structure. After we zoom in on the structure of the LED lamp bead, we will find the internal particle size chip. The complexity of the large structure of this chip is unimaginable, and it is usually divided into several layers. The longest layer is called the P-type semiconductor layer, the middle is called the light-emitting layer, and the bottom layer is called the N-type semiconductor layer. Simply put, the principle of LED lighting is mainly the use of light-emitting diodes.

2. The heat radiation generated is different

The heat of an incandescent lamp can be felt in a short period of time. The greater the power, the more heat. The electrical energy is converted partly to light and partly to heat. When people are very close, you can clearly feel the heat emitted by the incandescent lamp. LED electric energy converts light energy, which produces very little heat radiation, most directly converted into light energy, and the power of general lamps is low, coupled with the heat dissipation structure. Compared with incandescent lamps, LED flashlight cold light source of heat radiation is better.

3. The color of the light emitted is different

The light emitted by incandescent lamps is full-color light, but the composition ratio of each color light is determined by the luminescent material and temperature. The unbalanced ratio causes the color cast of the light, so the color of the object is not realistic enough under the incandescent light.

LED is a green light source. LED flashlight DC drive, no strobe, and also no infrared and ultraviolet components, no radiation pollution, high color rendering and has a very strong luminous directionality.

Not only that, LED lights also have good dimming performance, no visual error will occur when the color temperature changes, and the cold light source has low calorific value and can be touched safely. It is a healthy light source that protects eyesight and is environmentally friendly to meet people’s physical health needs.

4. How to distinguish between incandescent lamps and led flashlights

We have listed many differences between incandescent lamps and led flashlights, but it is difficult for us to distinguish them with the naked eye, so how should we simply tell between incandescent lamps and led lights?

• The shape of the lamp: led shape more, and incandescent light only one shape is a round bulb.
• The material of the lamp: most of the LEDs have aluminum on the lamp or inside, while the incandescent lamp will only be glass.
• Light color: led will have a variety of colors, while the incandescent lamp only one color yellow