Apem QS Series 12mm LED Panel Indicators – APEM QS121XXG24, A 12mm 24V DC snap-in panel mount green LED indicator with a coloured diffused flat lens. Ideal for applications such as domestic and commercial white goods, catering equipment, fire alarm panels, power distribution sockets, battery chargers/power supplies. APEM QS121XXG24 12mm LED Panel Indicator Green 24V DC Faston Terminals