Underwriters Laboratories (UL) is one of the oldest safety certification companies in the world. They certify products, facilities, processes or systems against industry standards. In doing so, they have issued more than 20 different UL certifications for a wide range of categories.
What is a UL Listed Device? When a product is listed by UL, it means that the global safety certification company UL has confirmed that the product is safe to use. Products that should definitely be UL listed before installing in your home include stationary appliances and electrical equipment.
Certified products usually carry the certification mark provided by the product certification body. The issuance of certification marks is at the discretion of each product certification body.
What is a UL Listed Safety Product?
UL-listed safes can be fire rated – for example, a one-hour rating means the safe can withstand 1,300 degrees Fahrenheit for one hour while still protecting the contents of the safe. Consider the weight of the safe. The heavier the safe, the less likely it is for a burglar to take it out of the house.

- Cychwynnwyd JCT yn 2003, ac mae wedi'i sefydlu ers 1990. rydym wedi bod yn gweithio ar ardystio a phrofi ers dros 15+ mlynedd o brofiad.
- Mae mwy na 500 o gwsmeriaid yn dewis Gwasanaeth JCT, rydym ni JCT yn cael mwy na 1000+ o dystysgrif i gwsmeriaid, ac yn arbed llawer o weithiau ac arian.Hefyd wedi helpu cwsmeriaid i gael mwy o archebion.
- Rydym yn hyderus y bydd y swydd yn cael ei chwblhau i'ch boddhad. Os am unrhyw reswm nad ydych yn gwbl fodlon gyda'r canlyniadau, byddwn yn trwsio'r mater ac ni fyddwn yn ystyried y gwaith a wnaed nes bod gennych wên ar eich wyneb!
- Peidiwch â phoeni am daliadau cudd ar y diwedd. Rydyn ni'n cyflwyno prisiau cyfradd sefydlog i chi cyn i unrhyw waith ddechrau hyd yn oed, felly byddwch chi'n gwybod yn union beth i'w ddisgwyl. Yr hyn rydyn ni'n ei ddyfynnu yw'r hyn y gallwch chi ddisgwyl ei dalu dim mwy.