change the LEDs on an LED magnifier? The LEDs used for illuminating Eschenbach Optik products have a virtually unlimited service life. They therefore do not need to be changed. What can I do if my LED magnifier [...] instructions. If in doubt, please ask your optician for help. Can I charge the battery handle of the Vario Plus system and use it at the same time? No. For technical reasons, it cannot be used during the [...] magnifiers from Eschenbach Optik? LED magnifiers from Eschenbach Optik provide a very even illumination of the field of view. With only two standard batteries, the necessary voltage is stepped up to the 3.6 volts