20W Fast Charger: Fast charger with power of 20 Watt Fast Charge capability to provides the most efficient charging power. Fast charge for phone from 0% to 50% in just 20 min, much higher than 15W or 12W charger.Say goodbye to lengthy charging times! Equipped with advanced super fast charging technology, this 20W charging block delivers a liightning-fast charging experience for all your compatible devices. Superior Safety Fast Charging:The ETL certified wall charger built-in over-voltage protection, features a stable voltage.avoiding from a short circuit, over-current, over-voltage, over-heating, and over-charging issues and will automatically stop charging when fully charged for a safe charging and long lifespan.