What does T8 mean for grow lights?

A T8 grow light is a fluorescent light that is exactly one inch (1”) in diameter and approximately 40% smaller than the T5 grow light model. With a longer design than the T5 grow light, these bulbs are not interchangeable within growing systems.

Are T8 fluorescent lights good for growing?

Four T8 fluorescent light bulbs will work well for growing vegetables indoors as long as you leave them on long enough to give the plants enough light.

What is better for growing T5 or T8?

More specifically, the T5 grow light takes the lead over the T8 grow-light in terms of efficiency. The T5 has a higher lumen to watt ratio than the T8, which means its output is more powerful and brighter per watt of energy.

What does T5 and T8 mean?

The “T” refers to “tubular,” which is the shape of the bulb, while the number represents a fraction in eighths of an inch. This means a T5 bulb is tubular and is 5/8″ in diameter, while a T8 bulb is also tubular and is 8/8″ (meaning 1″) in diameter.

Is T8 LED good for plants?

The T8 HO LED grow light is available in two light spectrums that are 100% more effective for plant growth than traditional fluorescent lamps. The Active Grow Sun White Spectrum features a high color-rendering index (CRI) of 95 and is suitable for the entire plant life cycle.

What does T8 mean?

What does “T8” mean? The “T” designation in fluorescent lamp nomenclature stands for tubular — the shape of the lamp. The number immediately follow- ing the T gives the diameter of the lamp in eighths of an inch.

What size is T8?

T8 bulbs are 8 eighths of an inch, or one inch in diameter. Other common sizes are T12 bulbs which are twelve eighths of an inch or 1.5 inches diameter, and the T5 lamps which are five eighths of an inch, or . 625 inches in diameter.

What’s the difference between T5 and T8 LED tubes?

T5 lamps are 40% smaller than T8 fixtures, but are capable of containing just as much and sometimes more light in a smaller area. In other words, more T8 fixtures are needed to produced the same amount of light generated by significantly fewer high output T5 bulbs.

What is the difference between T12 and T8?

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.

What does T8 and T12 mean?