The small 60X and 90X lenses are too small to be of any use, but the large 30X lens and LED work perfect for what I use it for (Examining watches at flea markets before I buy). There is no On/Off switch for the LED as it turns on as soon as you open it, but if you push it back in a tiny amount, it will shut off. For less than $10, it really is a good deal.
The 60X and 90X are pretty useless, but the 30X is perfect.