Ryobi 150-Watt Inverter

I purchased Ryobi's 150-watt inverter at Home Depot in June 2019. It features two USB 2.4 amp 5 volt DC outlets and one 120 volt 1.25 amp outlet with a maximum 150 watt output (250 watt start up). It's a modified sine wave inverter, so it should be used with caution for sensitive electronics when using the 120 volt outlet. The inverter also has an external LED that can be used as a temporary flashlight.

I've tested the inverter using a Ryobi 3Ah Lithium+ HP battery (54Wh at 18v) with the following results.

• 20" box fan for about 40 minutes
• LED landscape floodlight for 4 hours

I'm not sure of the wattage of these items.