I haven't used it much. I don't know the exact usage time because there's no setting to see the elapsed time, but I think it's been about 100 hours since I bought it. I'm including reference images taken with a Fire TV Stick 4K MAX 1st generation connected. The screen size is approximately 65-70 inches. I'm using the dedicated app for automatic keystone correction. The photos were taken from a distance of about 1.5m. I tried to make them look as close to the actual view as possible, but the colors are a bit richer, the cat/bird scenery is slightly brighter, and the resolution appears higher, so please use them as a reference. I may have overlooked something, so please ask any questions you have before purchasing. Thank you. Please refer to the manufacturer's website or YouTube for detailed performance information. Manufacturer's Website: https://jmgo.jp/products/jmgo-o1?srsltid=AfmBOopFaxWQr5ZtP2C6BerhGsm5E1nmcMpWTkFKvBVlM3c5YjbkRVCa&variant=40185786237011 - Brand: JMGO - Model Name: O1 - Product Information: Ultra-Short Throw Projector - Brightness: Up to 800 ANSI lumens - Recommended Projection Size: 80 inches (approximately 24cm from the projection surface) - HDR: Supported - Connection Terminals: LAN, S/PDIF, USB-1, USB-2, HDMI-ARC, HDMI, DC - Voltage: 100-240V - Output Voltage: 12V 2A