Average laboratory life in excess of 5000 hours. In-service life depends upon service conditions. (27)
Footnote Incandescent 2
Do not allow hot bulb to come in contact with liquid or metal parts of the fixture, as glass may shatter. Do not use outdoors. Do not operate in close proximity to flammable materials or those adversely affected by heat or drying. Operate only in heat resistant sockets. (87)
Footnote Incandescent 3
Circle E-The encircled E means this bulb meets Federal minimum efficiency standards.