Aerospace and Defence Products supplies 210 Series Incandescent Replacement Indicators. They are (MES E10) Miniature Edison Screw style indicators that are T3¼ in size. These LED indicators feature a high intensity LED element in a range of colours and voltages. Their centre contact is Anode, which comes as standard. They are designed with a flat-topped LED that results in wide angle viewing for switchtop and annunciator illumination. These indicators have the following benefits - high optical performance, lower heat generation and outstanding reliability.