(ONE BULB AND A  "E10 TO E12 ADAPTER"  NEEDED TO FIT ON TELCO MOTIONETTE PRODUCTS  PER KIT) 24Vac  1.8W Frosted Bent Tip Candle Glass, E10 Screw Base .
Bulb is 2 inches long and .75 inches wide (Perfect size and at 1.8 watts is not too bright)