Now supplying Interstate Batteries!

Interstate BatteriesTSEL now offers the full line of the best batteries, from the battery company that is truly tested and trusted... Interstate Batteries. With an unbeatable nationwide warranty, and one of the largest selections of batteries available, Interstate leads the way in innovation, quality and customer service.

Installation Profile: 2008 Chevy Impala - ECAA

A special 'thank you' to the great people over in Castor from the East Central Ambulance Association for letting us post some of the pictures of one of our latest installs. The vehicle was a 2008 Chevrolet Impala, that was being equipped as a Supervisor's vehicle, but everything was to be installed in such a way as to keep the car looking as discrete as possible.

Pricing Updates

Thanks to the awesome team of people at STL, we have now been able to streamline the ordering process and offer better pricing on most STL products! We are also currently updating our pricing system so that account holders will be able to see their pricing.

Don't have an account? Click here and sign up for an account today! It's fast and best of all it's free!

Are you an emergency service member? Apply today and receive our Emergency Services discounts!

New Product: STL OCTO

STL Octo STL has just released another amazing product, perfect for construction vehicles, public works vehicles, and transport vehicles. The STL Octo mag-mount light has an overall diameter of 6" and is only 3" tall! Don't let it's small size fool you, packed with 32 powerful 1 watt LEDs, this little guy packs some punch! Find out more about this product by clicking here!