20 PACK -- 11S14/CL, 11 Watt S14 Incandescent Light Bulb, Medium Base, Clear 11 Watts, 130 Volts, S14 sign replacement bulbs; for brighter bulbs, look for 15W A15 bulbs (B0143M11ZI ) Clear, incandescent light provides a warm glow, DIMMABLE medium base (E27), same as typical household socket base size 3.5" long (including base), max diameter 1.75" long life, rate at 5,000 hrs