MGLEDUV-2 Magnifying Glasses for close distance viewing with a 2x 4 Diopter lenses The lightweight hands free magnification glasses have eyeglass style frames which make these very comfortable to wear, and one side has and LED Light and the other has a UV light. These magnifying glasses have 2x magnification and have a have focal length of approx +9"-12" for most eyes ( individual focal length can vary slightly due to individual eye conditions and low vision needs ), over sized lenses provide wide field of view and maximum light transmission. These magnifying eyeglasses will make daily tasks easier to do by magnifying everything 2x. These are ideal for people who have presbyopia (farsightedness) or who just need more magnification to complete a detail tasks suck as soldering, fly fishing, stamp & coins, modeling, sewing, crafting, electronic repair, small print and general reading. These are a comfortable alternative to a 2x headband magnifier and can assist in small detailed tasks where magnification is needed and also very effective for reading. LED and UV lights make it ideal for low light conditions as well UV inspection processes.