Set of 4 GE Crystal Clear Decorative A15 40W Light Bulb, 1.4 Year Life,INTERMEDIATE Base NOT STANDARD BASE Includes 4 GE Decorative 40 Watt INTERMEDIATE Base Clear Bulbs **INTERMEDIATE Base** (These are NOT a standard E26 medium base or Candelabra Base). This is an uncommon size so Please make sure this is the size you need before you order! Application: Vanity lights, pendant lights, sconces, some ceiling fans, or appliances Perfect for home or office 1.4 Year Life based on 3 hours a day