T4 tubes have a diameter of 13mm. They’re compact and easy to install making them perfect for illuminating kitchen counters and worktops as well as under cabinet lighting. These tubes will generally use between six and eight times less energy. This will save you money and help save the environment.

What is the difference between T4 and T5 lights?

There are many types of fluorescent lights available but the main difference between the T4 and T5 lights are their efficiency or their watt consumption and lumen output, as well as the thickness of the tubes. The T4 has a half-inch diameter, while the T5 is five-eighths of an inch.

What is a T3 light?

With their application in many commercial and home settings, investing in a T3 light bulb is a great way to light work environments or home interiors. … A small amount of halogen gas is added to an incandescent bulb, which coupled with a tungsten filament, helps to redeposit the evaporated tungsten onto the filament.