This reliable 300W inverter with UPS functionality is a flexible power solution designed to ensure a seamless energy supply. It's equipped to handle external battery connections and provides pure sine wave output for stable operation of sensitive electronics. Nominal capacity: 500VA Rated power: 350W Input voltage range: 220VAC or 110VAC Pure sine wave output for stable performance Comprehensive protection against overload, high temperature, and short circuit LCD indicator for voltage, current, and other critical metrics External battery support: lead-acid, lithium, and water batteries Fast transfer time: ≤10ms Compact dimensions: 300 x 144 x 213 mm Ideal for: Maintaining power during outages Ensuring stable energy for sensitive devices Custom battery setups for specific power needs Technical Details: Input frequency: 50/60Hz±5% Voltage output: 220VAC±10% (or 110VAC±10%) Battery charging voltage: 13.75V DC Indicator display: input/output voltage, frequencies, and battery data Operating temperature: 0~40℃ Storage temperature: -15-45℃ This 300W inverter combines efficiency and dependability to suit a variety of applications. Worldwide delivery options available at checkout.