Solargorilla & Powergorilla Combo Kit 2-6 hours notebook power (depending on the voltage setting and the notebooks specification) Also charges your cellphone and other digital devices, Power your notebook and recharge other digital devices at the same time Green LED charging indicator, Output auto-lock to ensure notebook safety Worldwide A/C adaptor which works in over 150 countries and has interchangeable heads for UK, US/Japan/China, Australia and Europe Please Note: To use with Macbook Pro, Macbook Air and Macbook you will need an Apple MagSafe Airline Adaptor (Available at Apple Store)