Nanjing Ruifute Intelligent Technology Co., Ltd
Professional manufacturer of Solar energy traffic safety warning products
4 Tipas About key parameters in the design of Solar LED traffic lights
You are here: Home » News » 4 Tipas About key parameters in the design of Solar LED traffic lights

4 Tipas About key parameters in the design of Solar LED traffic lights

Views:24     Author:Site Editor     Publish Time: 2020-08-28      Origin:Site Inquire

Solar Led traffic lights can be seen on most equipment and circuits. What are the key parameters that need to be paid attention to when choosing the most basic LED traffic signal?

 

  Parameter 1: Wavelength

 

  Peak wavelength & dominant wavelength. The light that the human eye can see is not exactly the same as the light that the machine can see. So there are two wavelength indicators to express: dominant wavelength and peak wavelength.

 

  Peak wavelength: The wavelength corresponding to the maximum spectral luminous intensity or radiant power.

 

  Dominant wavelength: The wavelength corresponding to the color of the main light emitted by the light source can be seen by the eye as the main wavelength

 

  Generally speaking, the two parameters have little difference. The choice mainly depends on the application. If it is used on an optical instrument, the instrument needs to identify the wavelength at this time, and the peak wavelength should prevail when selecting. If it is used for instructions, because the recipient is human, the dominant wavelength should be considered more.

 

  Color and wavelength. There is a one-to-one correspondence between color and wavelength. If you want to find LED substitutes with the same color as before when selecting materials. The parameter of wavelength can be directly compared. If the wavelength is the same, the color is also the same. The following is the wavelength range of common colors.

 

  Red: R (610nm-640nm)

 

  Yellow (Yellow): Y (580nm-595nm)

 

  Blue: B (455nm-490nm)

 

  Green: G (501nm-540nm)

 

  Purple (Purple): P (380nm-410nm)

 

  Parameter 2: Luminous intensity

 

  Luminous intensity (candela, unit mcd) is a measure of the intensity of the light source, that is, the brightness of the light that the instrument can receive.

 

  In practical applications, the human eyes have different perceptions of light of different wavelengths. With the same radiant energy LED, we will feel that the red light is much brighter than the green light. In actual design, it is sometimes necessary to use LEDs of different colors at the same time. In order to ensure the consistency of the brightness of all LEDs, you can consider choosing a green LED with a higher luminous intensity.

 

  Parameter 3: Forward voltage & forward current

 

  LED is a kind of diode. Generally, in the case of forward conduction, the forward voltage Vf can be understood as the rated voltage required to make the LED emit light. The forward working current If can be understood as the rated current required to make the Solar Led traffic lights. Generally speaking, the greater the forward working current, the greater the brightness of the LED.

 

  The greater the forward current If, the higher the temperature, and the life will be affected. When the ambient temperature is high, it is recommended to reduce the forward current for longer LEDs. Many manufacturers will list the corresponding curve of temperature and rated forward current in the data sheet.

 

  Parameter 4: LED package

 

  There are two main types of packaging: patch and in-line.

 

  Generally speaking, the volume occupied by the patch will be smaller, and it can also be selected by size.


图库3

QUICK LINKS

PRODUCTS CATEGORY

FAQ

More >>

  • Q Could you please tell me your contact information

    A
    Nanjing Ruifute Intelligent Technology CO.,LTD 
    Add: No.118 Olympic sports street, Jianye district, Nanjing, Jiangsu, China
    Tel: 0086-25-84660416
    Mob.: 0086-15895860310
    Contact: Jessy Chen
  • Q What countries and regions do you mainly sell to?

    A Uae, Qatar, Cyprus, India, Thailand, Vietnam, Philippines, Malaysia, Indonesia
  • Q What are your advantages

    A Our products quality is stable, all the products have been inspected instead of random inspection. Our company has strong production capacity, the delivery time can be the shortest in the industry, strong industrial chain integration ability (solar panel, integrated circuit boards, shell injection molding, finished products assembly all made by ourself), cost advantage and strong R & D ability,first-class after-sales service.
  • Q What products do you mainly promote

    A Solar road stud, Solar barricade light, Vehicle warning light, Solar panel,   Blinker warning light square shape

FOLLOW US

CONTACT INFO

 : No.118 Olympic sports street, Jianye district, Nanjing, Jiangsu, China
 : jessy@solar-warninglight.com
 : 0086-25-84660416
  : 0086-15895860310
 : Jessy Chen
Copyright © 2019 Nanjing Ruifute Intelligent Technology Co., Ltd., All Rights Reserved.