Aerospace and Defence Products offers 209 Series Incandescent Replacement Indicators. They are T1¾ sized, (T5.5 SB) slide based style incandescent replacement indicators, featuring a high intensity LED element in a range of colours and voltages. These indicators are manufactured with a flat-topped LED that provides wide angle viewing for switchtop and annunciator illumination. The various benefits of these LED indicators include high optical performance, lower heat generation and outstanding reliability.