First, I purchased the Koolertron 7 inch Lcd microscope. For the cost, it`s a good entry level microscope. But it lacks the HDMI output. Still it has a nice lcd screen. I just purchased the ADSM302. I am using it my work for Electronics. Even though it only has a 5 inch screen. It is more like a high dollar microscope. I`m very impressed with the screen resolution. Very impressed when hooked up to a 20 inch monitor through the HDMI. the base is heavy and strong. The led lights put out sufficient light. There is plenty of working space. There are many different focal lengths you can adjust. You can record or take snapshots and save to sd card or PC. The remote is a nice feature to have if you don`t want to move what you are viewing. All in all. This is a very good microscope for the money. If your looking, this is the one.