A 40 inch HD Ready LED TV typically refers to a television with a screen size of 40 inches and a resolution of 1366x768 pixels. "HD Ready" means that the TV can display high-definition content up to 720p, but not Full HD content (1080p).
LED TVs use Light Emitting Diodes to illuminate the screen and provide brighter, sharper and clearer images compared to traditional LCD televisions. LED TVs are also more energy efficient and have a longer lifespan.
Overall, a 40 inch HD Ready LED TV can be a good choice if you want a budget-friendly television for everyday use, such as watching TV shows, movies, and playing video games. However, if you want to enjoy high-quality content in Full HD or 4K resolution, you may want to consider a TV with a higher resolution.