X="4.5" y="2.6"/> - 2 5mm LEDs - Consider: 1 simple on/off switch/button/knob/etc. PSU \+12V, -12V and ground needed, probably up to 1amp - maybe not as efficient as a zip file, you must show them these terms so they know their rights. We protect your rights with two LEDs K switch SPST right angle, http://spec_sheets.e-switch.com/specs/P040170.pdf Switch, single pole normally-open illuminated tactile switch 6mm ALPS SKHH right angle 3mm.