MIL-DTL-4510 Spotlights, Incandescent, Roof-Mounted, AutomotiveThis specification covers roof-mounted spotlights of 6, 12, and 24-volt ratings, using PAR 46, screw-terminal lamps of the proper voltage and power for use on commercial vehicles.

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MIL-DTL-4510F

e. Manufacturer's Name.

f. US.

g. Military Part Number.

3.9 Instructions. Mounting instructions, including required templates shall be packed

with each light.

4. VERIFICATION

4.1 Classification of inspections. The inspection requirements specified herein are

classified as follows:

a. First article inspection (see 4.3).

b. Conformance inspection (see 4.4).

4.2 Inspection conditions. Unless otherwise specified, all inspections shall be performed

in accordance with the test conditions specified in 4.2 and 4.3 of this specification.

4.2.1 Lamp failure. Failed lamps shall not constitute light failure. The lamp shall be

replaced and the tests continued.

4.3 First article inspection. A sample of the spotlight the supplier proposes to furnish

under the specification shall be examined and tested as follows:

4.3.1 Conformance requirement. The light shall be examined to assure conformance to

all requirements of section 3 of this specification.

4.3.2 Operation. The light shall be operated thru the full angular range specified in 3.3.3

with the lamp on. Conformance to the bulb position specified in 3.5.1 shall be verified. No

binding or looseness of parts shall be evident. The lamp head shall retain its position when the

control handle is released.

4.3.3 Environmental inspection. Unless otherwise specified (see 6.2), the light with

lamp installed shall be subjected to the following tests:

4.3.3.1 High temperature. The light shall be placed in a test chamber having a

temperature of +71 �C � 1�, with a relative humidity of not more that 15 percent. After a soaking

period of not less than 24 hours the light shall be operated in accordance with paragraph 4.3.2.

The light shall then be allowed to return to normal ambient conditions and shall be examined in

accordance with 4.3.1 and operated in accordance with 4.3.2.

4.3.3.2 Low temperature. The light shall be placed in a test chamber having a

temperature of -54 �C. After a soaking period of not less than 24 hours, the spotlight shall be

operated in accordance with 4.3.2, first with the lamp off, then with the lamp on. The light shall

be allowed to return to normal ambient conditions and examined in accordance with 4.3.2.