Operation with 2 x AA - no mains connection required! Pros: No cable on your wall; very easy to install! Behind the glass edge where you want to attach the glass edge lighting there should be no less than approx. 0.7 cm of space must be free. The dimensions of the battery holder are: 68 x 33 x 18.5 mm. The battery holder for 2x Mignon (AA) is a closed housing with an on and off switch. The batteries last for approx. 96 hours. The luminosity of the LEDs does not decrease. That's enough for a whole month of three hours of operation every day. (This is what our test results have with two glass edge lighting with 2x Mignon AA from “Lidl” and “AEROCELL” each. 1.5V proven.) U-profile/unused. Low processing is suitable for invisible areas. Important: On/Off switches are reversed or Email and tel