Whelen Engineering Frequently Asked Questions
How do I contact customer service?
Phone: (860) 526-9504 Email: custserv@whelen.com Mail: Whelen Engineering Building B 51 Winthrop Road Chester, CT 06412-0684 Open Mon. - Fri. 8:30am to 6pm EST
How do I return an item for service or repair? Please include:
Ship to: Whelen Factory Repair
Building B
51 Winthrop Road
Chester, CT 06412-0684
A copy of the sales receipt if qualified for warranty coverage.
A short description of the problem.
Your name, return address and daytime phone number.
Where can I buy Whelen products?
You can find a dealer near your location by going to: http://www.whelen.com/_AUTOMOTIVE/sales_automotive.php"
What is the warranty period on my LED lighthead?
All Whelen LEDs are covered by a 5 year warranty from the manufacture date of the LED assembly. LED products that have failed within the 5 year warranty period should be sent into us for warranty consideration. Click for warranty.
How do I find an exploded view of a product (if available) ?
Go to the product page and click on the icon with two gears located next to the model number.
How do I determine the model of my lightbar?
Determining the model lightbar you have is the most important thing you can do before contacting us for technical support on a lightbar product. There is a decal that is affixed to the bottom of the lightbar frame in the area where the cable exits the lightbar. The decal will have the lightbars model number. You will need to obtain this model number information and have it ready to give to the technical support group memeber who will be assisting you.
Part numbers for AMP connectors?
AMP Connector Reference Guide, Click Here to View
What is the difference between SAE Class 1, 2 and 3?
These are SAE intensity categories.
For amber warning products, Class 3 products provide approximately 40% of the minimum intensity of Class 2 products. Class 3products are typically used inside buildings where there is no ambient sunlight.
Class 2 products are typically used by utility vehicles and other equipment found working along the roadside. The minimum intensity for Class 2 products is approximately 2.5 times that of Class 3 products.
Class 1 products are approximately four times the minimum intensity of Class 2 products. Class 1 products are intended for primary emergency vehicles such as police, fire and ambulance vehicles. Many States are beginning to mandate the use of Class 1 amber warning products where before Class 2 was the minimum requirement. Check with local authorities to determine what is needed in your area.
What do all the different flash patterns look like?
You can experiment with all our flash patterns by going to http://www.whelen.com/_AUTOMOTIVE/media/flash_patterns/index.htm
What does "Phase 1/Phase 2" for flash patterns mean?
Many of our products can be "Phased" so that several lights blink in a particular sequence. "Phase 1" and "Phase 2" represent the different ways to synchronize these lights. The best way to understand this is by using our Flash Pattern Phasing widget at http://www.whelen.com/_AUTOMOTIVE/media/flash_patterns/phasing/phasing.htm
What do all the different siren tones sound like?
You can use our Siren Tone widget at http://www.whelen.com/_AUTOMOTIVE/media/siren_tones/siren_tones.htm to listen to all our siren tones.
All products proudly designed, manufactured and assembled in the U.S.A. ![]()
Copyright Whelen Engineering, Inc.


