LED signal lamps, type Mentor RTM 5030. Diode diameter: 5.0 mm. Housing material: CuZn, chrome finished. Insert: PC, white. Connections: tinned. Operating temperatures: –40 to +85 °C. Bushing mount: M 8 x 0.75. Technical attributes (type, LED color, on-state voltage (typically) at 20 mA, on-state current (max.), wavelength, luminous intensity (min./typically) at 10 mA): RTM 5030 R, red, 2.25 V, 25 mA, 660 nm, 0.4/1.0 mcd