service support

Frequently Asked Questions

In order to solve the problems in practical application, we compile the feedback according to hotspots from users.

Principles of installation & operation (Must Read)

  • Please strictly comply with Product Instruction Booklet issued by Nanhua during the installation process.
  • Please also strictly comply with Product Instruction Booklet issued by Nanhua in selection of wattage and input.
  • Please pay more attention to the mounting environment. There are constant malfunctions due to negligence and random installation.

Typical Case:

BC-8 Outdoor Siren and LED Light: Mounting method comparison

Wrong
Correct
Bell mouth mounted upward or horizontal

Bell mouth mounted vertical-downward

FAQ list

Q. YH25-3 loudspeaker

Malfunction appearance: Soundless
Cause: Mounting error—speaker burned due to direct power input without power controller.
Solution: Replace products
Instruction: Please comply with Product Instruction in installation.

Q. BC-8 Outdoor Siren and LED Light

Malfunction appearance: soaking, transformer burned
Cause: Mounting error—soaking brought about burning
Solution: Replace products
Instruction: Please comply with Product Instruction in installation.

Q. What is covered by your warranty?

Answer:The warranty given as standard ensures that the performance of the light meets the required specifications for the entire 5 year period. Please see Warranty for details.

Q. How does one know when an LED product is out of photometric specifications?

Answer:Our warranty allows for a minimum of 5 years of operation while ensuring the beacon meets the FAA's minimum photometric requirements. LED's do not "burn out" similar to incandescent. An LED will have a slight degradation of light output with use. This is similar to the degradation of a strobe tube.

About Nanhua | Contact Us | Careers
© 2010 Nanhua Electronics Company - All Rights Reserved.