Laptop AC Adapter Safety Mark

Have you ever wondered what all the symbols, logo schemes and fine print intricacies on the back of a laptop adapter actually indicate? Perhaps you've never noticed the hieroglyphics that cover the underside of these power packs, much less understand what they mean.

The following glossary should clear up any confusion and satisfy the stunning curiosity you may have harnessed when coincidentally faced with the underside of your Dell laptop AC adapter. Basically, the symbols are indications that the device and its inner contents are in accordance with various environmental policy, international trade requirements, and quality standards. There are a lot of pictures because there are a lot of regulations. Many of these need not apply, nor interest the average laptop user. Others, however, might be worth inspecting. Either way, we have cracked the code and aren't keeping the secret to ourselves.
Underwriters Laboratories® is an independent product safety certification organization that has been testing products and writing standards for safety for more than a century. UL evaluates more than 19,000 types of products, components, materials and systems annually with 20 billion UL Marks appearing on 66,000 manufacturers' products each year. UL's worldwide family of companies and network of service providers includes 68 laboratory, testing and certification facilities serving customers in 102 countries. The UL Listing Mark is one of the most common UL Marks. If a laptop power adapter carries this Mark, it means UL found that representative Toshiba laptop AC adapter samples met UL's safety requirements. These requirements are primarily based on UL's own published standards for safety.
RoHS is an acronym for Restriction on the use of certain Hazardous Substances. The concept behind California's RoHS Law is to limit the amounts of certain hazardous heavy metals in specific waste electronic devices (laptop power adaptors) so that those metals never find their way into landfills or elsewhere, where they can eventually be released into the environment. California's Legislature modeled the California RoHS Law after the European Union's (EU's) Directive 2002/95/EC which bans certain hazardous substances from electrical and electronic equipment sold in the EU. The California RoHS law required DTSC to adopt regulations prohibiting HP laptop adapters from being sold or offered for sale in California if that adapter is prohibited from being

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