The Maplin SPST Illuminated Toggle Switch - Red that illuminates in a distinctive colour when in "On" position. Specification Switch rating: 20A, DC 12 V Contact rating: 50m Ohm maximum Insulation: DC 500 V, 100M Ohm minimum Dielectric strength: AC 1500 V for 1 minute Operating Temperature -25°C~+85 °C Electrical life: 10, 000 cycles Body size: 24.4 x 14 x 14mm Bush length: M12 x 11mm long Dolly: 25mm x 10mm Panel cut-out: 12.2mm