MIL-L-7082 Revision D, January 2, 1969
LIGHT, RUNWAY MARKER, ELEVATED, TYPE M-1
Includes all amendments and changes through Cancellation Notice 1, January 12, 2000
Additional Comments: CNCL NO S/S
This specification covers one type of elevated runway marker light, designated type M-1.
Runway marker lights shall be of the following classes, as specified (see 6.2):
Class A - For permanent and portable applications at normal temperatures Class B - For portable applications at extreme low temperatures (see 6.2)