Using this magnifier is a breeze. Just turn on the two LED lights by powering it with 3 x Coin type Alkaline batteries (LR927 1.5V). Then hold it close to the object you want to magnify and enjoy a clear 30X view. When using it in dark places, the LED lights will give you a great visual experience. Remember to handle it gently as it is a delicate instrument. Don't drop it or expose it to extreme temperatures. For maintenance, keep it clean by using a soft cloth to wipe the lens. If the LED lights don't work, check the batteries. Make sure to replace them when they run out to keep your magnifier in good working condition.