Vibration service. 120V. Appliance light bulbs. Lasts 2x longer (Almost the same light output and lasts twice as long as a 40 W, 1000 hr. bulb.). Lasts 2x longer than standard A15 bulb. Life 2000 hours. Standard base. Vibration resistant filament for long life. Recommended Uses: refrigerators, ovens, microwaves. Operate in any position. CSA listed. Made in USA.