Globe-Shape (G) 40 LED bulbs are ideal for patio stringer lights. They use less than 1 watt of power, operate on 120V line voltage, and are designed to last 17 times longer than traditional incandescents. Like all light bulbs, the 40 value represents the diameter of the bulbs in 11/8 of an inch. Therefore, G 40 is 1.625 inches in diameter.
G40 LED Bulb Replacements: G40 LED bulbs are primarily intended for use in outdoor string lights, household lighting fixtures and decorative ambient lighting.