Your question: What does the T mean in light bulbs?

What is the difference between T8 and T 12 bulbs?

The main difference between T8 and T12 tubes is the tube’s diameter. T12 tubes are 1.5″ in diameter while T8s are just one inch. All other things—socket sizes, lengths, distance between pins—are the same. T8 LED tubes won’t fall out if you try to install them in a T12 fixture—they’ll fit just fine.

Are A19 and E26 the same?

So to answer your questions in short, A19 and E26 is not the same. two different parts of the same bulb, but they are almost always combined. … “E26” on the other hand indicates what kind of base the bulb has. Most A19s will have an E26 base, but there are a few exceptions.

Do T8 and T12 bulbs interchangeable?

T12 primarily run off a magnetic ballasts and T8 bulbs operate on electronic ballasts. … So the bottom line is that these are not interchangeable and if you’re going to upgrade from a T12 to a T8 bulb, then you also have to change out the ballast.

Is T5 or T8 better for bearded dragons?

In my opinion, the T5 is vastly superior – it has a much higher UVB output and can be placed 12″ to 18″ away from your bearded dragon. … T8 bulbs, on the other hand, should be placed within 8″ of your Bearded Dragon. Since UVB output is much lower in T8 fixtures, the bulb must be placed inside of the tank.

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