The sizes are as follows: G50 - 2 Inch Diameter
G40 - 1 1/2 Inch Diameter
G30 - 1 Inch Diameter
Globe bulbs are also available in LED's! These bulbs come in G50 size with a C9 base. LED globe lights are gaining popularity due to the low power usage and long life. LED globe bulbs are rated for around 50,000 hours and use around one watt of power.
Globe lights are used for a variety of projects. One of the most popular uses is for outdoor lighting around decks and patios. G50 bulbs as wedding and party lighting is a inexpensive way to get a very dramatic lighting effect. These globe bulbs used along with a Christmas light controller is a great way to achieve a chasing window display lighting. These bulbs are even a great prom or theater productions.
More than just the varying size of globe bulbs, the wattage varies also. G30 and G40 with a C7 base bulbs are 5 watts, whereas G50 with a C7 base bulbs are 7 watts. You will have to take wattage into consideration when doing your lighting projects so that you do not overload your wire.
Hopefully this has given you a little insight on globe lights sizes and various applications. Check out our selection of globe lights.