I recently acquired a 150W power system that operates without the use of batteries. Over the past year, it has consistently performed with exceptional reliability. Despite the manufacturer’s recommendation to use the unit indoors, I have successfully utilized it outside under shelter with great satisfaction. This system has allowed me to charge multiple devices daily, including LED light strips, phones, tablets, Bluetooth earbuds, and even my computer. I have connected it to a USB/110V AC power strip via an invertor, and I am highly satisfied with its performance. I would definitely consider purchasing another unit in the future.