E-39 Base Bulbs
Mogul (E-39) Base Light Bulbs
Mogul (screw) base light bulbs or mogul base bulbs have larger screw bases (E-39) than the standard, medium (E-26) screw base bulbs.
More power, more heat. Mogul base bulbs are made of cast porcelain to tolerate higher temperatures, making them ideal for industrial and commercial uses (e.g., power ratings of 250-1000 watts); in terms of technology, mogul base LED bulbs, mogul base compact fluorescent bulbs, and mogul base halogen, mercury vapor, metal halide, and high pressure sodium bulbs are available in the market.