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Quick Details

  • Place of Origin: Guangdong, China (Mainland)
  • Brand Name: LLM
  • Model Number: LLM-SDYDB-05

Packaging & Delivery

Packaging Details Tunnel electronic led road sign;
Standard export carton box package or customized.
Delivery Time 3~15days

Direct manufacture tunnel electronic led road sign


Brief introduction


LED tunnel sign board, also known as tunnel electro-optic signs, mainly used in the tunnel, it is a kind of traffic safety facility to indicating tunnel security. It is a kind of luminous signs with a certain graphics, symbols and can be clearly identified in low light environment.


Currently, DOT issued <the standard of highway tunnel traffic engineering design> (JTG/T D71-2004) to make provision at tunnel lighting marker, It mainly include emergency call signs, fire equipment signs, pedestrians cross hole signs, emergency parking signs, evacuation signs.


Diameter table


Item number




Product Specifications

 250 * 400 * 50 (mm)


 Aluminum alloy

Operating voltage




Photoelectric sign brightness

 Single side display>120cd/M2, double side display> 80cd /M2

Luminous side

 Double-sided / single-sided

LED life

 ≥8 million hours.

Light way

 24h direct light

Environment temperature

 -20 ℃ ~ + 65 ℃


 20% to 95%

Protection grade

 > IP65

Visible distance

 > 500m

UPS Power Duration

 > 90 minutes, if the product was stored for long time, we need to charge the battery in order to ensure the normal work of UPS.


 LED light adopt high quality luminous chips from Taiwan, strong permeability, high brightness, the product according with <the standard of highway tunnel traffic engineering design>.


Detail pics    


1) If you do not install the solar series product on time after you received the products, please charge

 them under the sun outdoor once per month to ensure the effectiveness of battery;

2) OEM&ODM available;

3) Lifespan 3~5 years, 1 year warranty.




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About us

Shenzhen LuMing Traffic Equipment Co., Ltd. was founded in 2006. It is a professional supplier of solar traffic products and traffic safety facilities. And it is an export-oriented high-tech enterprise that combined R&D, production, sales, and after-sale service together.

Flagship brands "LM", "LLM", Products are widely used in lots of highways, highway bridge and urban roads in native and abroad, it is selected as high quality products to many customers, with a good public praise over years, certifications and test reports all in readiness.


Hotline: +86-13924653436 (Helen)




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