LED wall washer English name Ledwashwalllamp, also known as linear LED flood light, etc., because its shape is long, most of them are aluminum wall washers, also known as LED aluminum strip lights and LED line lights It is mainly used for architectural decoration lighting, and is used to outline the outline of large buildings. Its technical parameters are similar to those of LED floodlights. Compared with the circular structure of LED floodlights, the strips of LED wall washers. The structure of the heat sink appears to be a little better.
First, the basic parameters of high-power LED wall washer
LED wall washers and guardrail tubes have many similarities. Let us introduce the parameters of the LED wall washers on Qin as an example:
1. Voltage:
The voltage of the LED wall washer can be subdivided into 220V, 110V, 36V, 24V, 12V, and so on, so we pay attention to the corresponding voltage when selecting the power supply.
2. Working temperature
Because the wall washers are usually used outdoors, this parameter is more important and the temperature requirements are higher. In general, the outdoor temperature we require can work at -40 ° C + 60 ° C. However, the wall washer is made of aluminum shell with better heat dissipation, so this general wall washer can meet the requirements.
3. LED lamp beads:
The number of LEDs for general wall washers is 9/300mm, 18/600mm, 27/900mm, 36/1000mm, 36/1200mm.
4. Protection level:
This is an important parameter of the wall washer, and it is also an important indicator affecting the quality of the current guardrail tube. We have to carry out strict requirements. We use it outdoors, and it is best to require the waterproof level to be above IP65. Also require relevant pressure resistance, chipping resistance, high and low temperature resistance, flame resistance, impact aging grade IP65, 6 means complete prevention of dust entry; 5 means: rinse with water without any damage.
5. Control method
For LED wall washers, there are currently two control methods: internal control and external control. The internal control means that the external controller is not needed, and the designer designs the control system inside the wall lamp. The degree of effect cannot be changed. The external control is the external controller, and the effect can be changed by adjusting the button of the main control. Usually in large projects, customers can change their own effects. We all use external control. There are also many wall washing systems that directly support the DMX512 control system.
6. Color specifications:
2, 6, 4, 8 full color, colorful, red, yellow, green, blue, purple, white, etc.
7. Luminous angle: The illumination angle is generally narrow (about 20 degrees), medium (about 50 degrees), and wide (about 120 degrees). Currently, the most powerful LED wall washer (narrow angle) is the most effective. Projection distance is 20-50 meters
8. Mirror surface: glass reflective lens, light transmittance is 98-98%, not easy to atomize, can resist UV radiation
9. Light source
Generally, 1W and 3WLED are used as the light source. However, due to the immature technology, the current market is 1W, because 3W generates a large amount of heat, and the heat is not good. The above parameters must be considered when we choose the LED high-power wall washer. In order to reduce the light loss caused by the light emitted by the LED tube for the second time, the illumination is better, and each LED tube of the wall washer will have a High efficacy lens made of PMMA. I now make the connection of the wall washers easier to understand through the control connection diagram.
Second, the working principle of LED wall washer
LED wall washers are relatively large in size and heat dissipation, so the design is also greatly reduced in difficulty. However, in practical applications, constant current driving will not be done too well, and there are many damages. So how to make the wall washer work better, the focus is on control and drive, control and drive, let us study together.
1. LED constant current device. Regarding the high-power products of LED, we will all mention the constant current drive. What is the LED constant current drive? Regardless of the change in the size of the load, the circuit in which the current of the LED remains unchanged is called LED constant current drive. If the wall washer uses 1W LED, we usually use 350MA LED constant current drive. The purpose of LED constant current drive is to improve the life and light decay of LED. The choice of constant current source is based on its efficiency and stability. I choose the high-efficiency constant current source as much as possible, which can reduce energy loss and temperature.
2.The application of led wall washer Let us analyze the main application of wall washer and the achievable effect.
LED wall washers are controlled by built-in microchips. In small engineering applications, they can be used without controllers. They can realize dynamic effects such as gradation, jump, color flicker, random flicker, gradual alternation, etc., and can also be controlled by DMX. Achieve chasing, scanning and other effects.
3. Application place:
Monolithic buildings, historical buildings, exterior wall lighting. The building is exposed to light and indoor lighting. Green landscape lighting LED wall washer billboard lighting. Specialized lighting for medical and cultural facilities. Bars, dance halls, entertainment venues, etc.
4. LED wall washer trend
In recent years, LED wall washers have been widely used in various places, such as the lighting of the corporate buildings, the lighting of government buildings, the lighting of historical buildings, entertainment venues, etc. The wider, from the original indoor to the outdoor, from the local partial lighting to the current overall lighting, are the level of improvement and development, with the times of progress, nowadays Qin Shang LED wall washer has been heavily invested in various fields. In the lighting project, in the next few years, LED wall washers will become an indispensable part of the lighting project.
FIRSTPOWER offers a full assortment of back-up batteries delivering a multitude of applications as Network Power & Reserve Power. Applications include telecommunications, computers, security systems, emergency lighting, power plant systems, medical, alternative energy, railway crossings, and various forms of military equipment used in mission critical environments.
Network Power,Reserve Battery,7 Days Power Reserve Battery,Reserve Power Battery
Firstpower Tech. Co., Ltd. , https://www.firstpowersales.com