450 joules protection rating. Protect your electronics and charge two USB devices. Perfect for smartphones, MP3 players, eReaders and more! UL listed. 3 protected outlets - with twist-to-lock safety covers. 2 USB charging ports - charge directly from the power source. Protected indicator light - shows surge protection components are working. If the protection indicator light goes out, this unit will no longer provide surge protection as intended and should be replaced. This device is not a lightning arrestor, so it will not afford protection when lightning strikes nearby power lines, the house, service entrance or antenna. Specifications: Joule Rating: 450; Voltage Protection Rating: (L-N) 700; Line Voltage: 120 VAC; Maximum Line Current: 15 AMP/1800 Watts; USB Charging Ports: 1.0A total output. For limited lifetime warranty and instructions, see insider inside. Note: USB charging ports may not charge all devices. Some devices require a proprietary USB power supply. www.jascoproducts.com. This Jasco product comes with a limited lifetime warranty. Visit www.jascoproducts.com for details. Made in China.