Safety - Passed stringent safety tests to ensure you and your devices' safety. Compatible with Acer Predator Helios 16, Predator Helios Neo 16, Predator Helios 18, Predator Helios Neo 18 Laptop. Only for amperage equal or less than 16.92A. Guarantee - Within 30 days of purchase, we offer a no-questions-asked replacement guarantee and a 360-Day-Quality-Guarantee by the Manufacturer. Output Max - 19.5V 16.92A 330W Input Volt Range - 100-240V Package - 1 X power cord. Compatible with Acer Predator Helios 16 / Predator Helios Neo 16 / Predator Helios 18 / Predator Helios Neo 18 Laptop (Only for amperage equal or less than 16.92A).