It's easy to measure your light bulbs, and it's crucial if you need to replace a bulb but can't find the original box or are switching to LEDs that use less energy. You must, after all, be certain that the new bulb you choose will fit in your fixture.
If you've never had to measure a light bulb, you might be unsure of the measures you must take and where you should begin. Let's look at this:
Evaluation of the Bulb
The upper portion of the light bulb, which is made of glass or plastic, is sized and labelled in millimetres or eighths of an inch.
You'll require two different measurements from this region:
Length
With a ruler or measuring tape, measure the length of your light bulb from the top of the glass or plastic bulb to the very tip of the base. You want to measure the height of the bulb, not its surface length, so if you're using a soft measuring tape, keep it taut rather than following the edge of the bulb.
Width
Each light bulb has a unique identifier that identifies its form and largest diameter. For instance, an A19 code designates a traditional A-series light bulb with a 19 eighths of an inch diameter (2.38 inches or 60.33mm). You must also measure the bulb at its widest position, which may vary depending on the type of bulb you pick, in order to obtain the right width measurement. These are a few instances:
Evaluation of the Base
The base of a light bulb is measured in millimetres regardless of the base style it possesses, such as a bayonet or screw. Measurements for light bulb bases will be marked with a code like that of the bulb. For instance, an E27 light bulb base denotes that it has an Edison screw base with a diameter of 27mm.
Calculate twice
Changing the bulb in certain lamps might be challenging since there isn't much room available, but as long as your new bulb is around the same size as your previous one, there shouldn't be any issues. Be sure you always have these lightbulb dimensions on hand:
Measurements of Length, Diameter, and Base
