Best I have found
After trying many brands, I like that they use regular AAA batteries, work well and are inexpensive enough to put in many places and throw away when abused or damaged.
The Lighted Pop-Up Magnifier has 2x magnification and an inset 6x bifocal plus a single bright white LED rated for 100,000 hours. The optical grade acrylic lens is housed in a spring-loaded encasement, squeeze the side buttons once to extend the magnifier, and a second time to turn on the light. Powered by 2 AAA batteries (included) with a battery life of 6 hours.
IDEAL FOR: travel, portability, protecting your magnifier lens when on the go.
3 LUMENS | 2" x 2" retractable lens | SKU# 86012
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