‎2.95 inches

This 100W Black infrared heat lamp is made of solid ceramics element, it has a perfect heat radiation feature and no light emitted 24hr Heat Source 100% Efficiency, This ceramic heat lamp is simple and easy to install, just screw it into a standard porcelain E26 screw socket, great for pet, coop, chicken, turtle This heat lamp's input voltage is AC 90-120V, power is 100-Watts, full size is diameter 3.15 inch x height 4.13 inch

✔ Perfect 24 Hours Heat Sources – Ceramic heat emitter is a radiant heat source which creates a natural sunlike heat with a uniform pattern, last up to 10000 hours. ✔ 100% Heat Efficiency – Reptile heat lamp the long wave infrared heat produced by this emitter will warm reptiles very efficiently. It also increases the ambient air temperature in the terrarium. ✔ No Light Emitted – Reptile heat bulb does not disturb normal sleeping habits of reptiles, chickens coops and outside pets. Available for daily use.