How do I know what kind of lightbulb I have?
Light bulbs are identified by their shapes and sizes. This is done with a letter and a number. A 60 watt light bulb is used in most homes. The A19 type bulb is what it is referred to as.
How do I know what size light bulb I need?
If you want to know the size of your base, you need to measure the width of your base in millimetres.
What is a Type B light bulb?
B-shaped bulbs are referred to as Candelabra bulbs. There is a bulged base to the rounded tip of the bulbs. The bulbs look a lot like holiday lamps. The bulbs of this shape are spread out in a wide range of applications.
Can I use A21 bulb instead of A19?
Is A19 lamps compatible with A21 lamp holders? Because A19 lamps are smaller in all dimensions than A21 lamps, they will fit in virtually all fixture and lampholder designs. The A19 lamps are compatible with the E26 base.