UL Safety Testing Institute is the most authoritative in the United States, is also engaged in the world of safety testing and identification of the larger civil institutions! After nearly a century of development, UL has become a world-renowned certification body with its own set of strict organizational management system, standards development and product certification procedures. At present, UL has five laboratories in the United States mainland, headquartered in Northbrook Town, north of Chicago, USA, and at the same time in Taiwan and Hong Kong respectively set up the corresponding laboratory.
In 2017, for the first time to get UL U.S. headquarters laboratory for the positive Zenithsun positive load electric Yang box technical parameters and the strength of the company's recognition of the positive Zenithsun and determine the production of 2 sets of 20A @ 120Vac240Vac dual-voltage resistive load box first to try!
In 2020, recommended by UL New York Laboratory, Zenithsun once again get another UL laboratory for resistive load resistor box negotiation, and obtained 8 sets of dual voltage resistive dummy load box 7.4kW @ 120Vac240Vac order for good cooperation. At the same time in the product arrived in the United States after one month of use, we received the UL company using the department for the good recognition of Zenithsun load resistance box!
Translation: We love these load boxes so far. All of my technicians love these load boxes because they are easy to maneuver and are small in size, the only downside is that the fans are a little noisy, but we know that's normal )
Thank you for customers around the world for the support and recognition of Zenithsun company, we will continue to work hard to strengthen the technical strength of the enhancement, strive to create more and better resistor products and services for our customers!
