MIL-DTL-45068E
3.4 Performance.
3.4.1 Current draw. When supplied with an input voltage of 28 ± 1 V dc, the current draw of the
dome light shall be no more than 0.45 amperes (A) in the blackout position, 0.75 A in the white light
position and 0.0001 A in the off position (see 4.6.2).
3.4.2 Photometric. The photometric properties of the dome light shall meet the requirements on
Drawing 7064571 (see 4.6.3.2).
3.5 Environmental.
3.5.1 High temperature. The insulation of the switch, electrical wiring and bulb sockets, and
isolators shall show no evidence of melting, deformation, or cracking and the dome light shall meet the
requirements of 3.4.1 and 3.4.2 after storage and during and after operation at temperatures as high as 75
degrees Celsius (șC) (see 4.6.4.1).
3.5.2 Low temperature. The insulation of the switch, electrical wiring and bulb sockets, and
isolators shall show no evidence of deformation, or cracking and the dome light shall meet the
requirements of 3.4.1 and 3.4.2 after storage and during and after operation at temperatures as low as
minus (-) 55șC (see 4.6.4.2).
3.5.3 Shock. The dome light shall evidence no cracking, breakage, loosened or distorted parts or
other physical damage and shall meet the requirements of 3.4.1 and 3.4.2 after exposure to sawtooth
shock pulses having a peak value of 25 gravity units (g) and duration of 7 milliseconds(ms) (see 4.6.4.3).
3.5.4 Vibration. The dome light shall evidence no cracking, breakage, loosened or distorted parts
or other physical damage and shall meet the requirements of 3.4.1 and 3.4.2, after exposure to simple
harmonic motion having an amplitude of 0.75 millimeters (mm) (1.5 mm maximum total excursion) in
the frequency range of 10 to 55 to 10 hertz (Hz) with a sweep time of 1 minute (see 4.6.4.4).
3.5.5 Corrosion. The dome light shall meet the requirements of 3.4.1 and 3.4.2, after prolonged
exposure to a salt laden atmosphere (see 4.6.4.5).
3.5.6 Waterproofness. The dome light shall meet the waterproofness requirements compatible to
the guidance of MIL-HDBK-1184 for type II, class 1 components and 3.4.1 and 3.4.2 (see 4.6.4.6).
3.5.7 Fungus. The dome light shall meet the requirements of 3.4.1 and 3.4.2 and evidence no
microbial growth after exposure to conditions favorable to fungal growth (4.6.4.7).
3.6 Finish. Unless otherwise specified (see 6.2), all exposed surfaces requiring a paint topcoat
shall conform to MIL-C-22750, or MIL-DTL-53039 (see 4.6.1 and 4.6.2).
3.7 Identification marking. Identification marking shall be in accordance with MIL-STD-130
and shall include the following (see 4.6.2).
Dome light 24 volts DC
Federal stock number
Date of manufacturer (month, year)
Military part number
Manufacturer's identification
US
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