LED Fluorescent Tube Replacements

T8 Tube Lights

T5 Tube Lights

T12 Tube Lights

 T9 Circline Lights

T8 U-Bend Lights

T8s are the most common linear tube bulbs with a 1-inch diameter and G13 medium bi-pin base. They are commonly used in fluorescent troffer and strip fixtures.

T5s have a smaller 5/8-inch diameter with a G5 bi-pin base. They often provide higher output and are labeled T5HO for high bay fixtures in high-ceiling applications.

T12s are 1.5 inches in diameter and often share the same G13 medium bi-pin base as T8s, allowing for interchangeability in LED models.

T9 LED Circline bulbs range in diameter from 6.5" to 16" and feature a four-pin base for easy installation. They are compatible with fully enclosed fixtures.

U-Bend LED bulbs come in leg spacings of 6” or 1.6”. They have bi-pin bases and can be installed in shunted or non-shunted sockets.

Type A Dual-End

Dual-end Type A installation is a "plug-and-play" option that allows for direct replacement of the original fluorescent tube with an LED equivalent, utilizing the existing ballast. This is the simplest solution for relamping your fixture, provided the ballast is confirmed to be in good working condition.

Type B Single-End

Single-end Type B installation involves bypassing the existing ballast and rewiring the fixture's sockets (tombstones). This method is a popular choice for relamping, as it eliminates the risk of future ballast failure.

Type B Dual-End

Dual-end Type B installation requires bypassing the existing ballast and installing the tube, ensuring the wiring polarity matches. This is the most common retrofit solution when opting to bypass the ballast.

Type A/B Hybrid

A/B hybrids can be installed as dual-end Type A, where the "plug-and-play" tube directly replaces the original fluorescent tube, or as a single-end Type B, which requires bypassing the ballast and rewiring the sockets.

Type A/B 3-in-1 Universal

Type A/B 3-in-1 universals are the most versatile tube lamp solutions. It allows for "plug-and-play" installation with the existing ballast, or the ballast can be bypassed for installation similar to single-end or dual-end Type B setups.

OR

OR

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Non-Shunted

Non-Shunted With Jumper Wire

Shunted

Non-shunted sockets have separate electrical contacts for each wire, allowing electricity to flow through two individual tracks. The contacts remain unconnected, providing independent paths for the current to each pin of the tube light.

Best Use: Non-shunted sockets are required for rapid-start ballasts or ballast-bypass installations, such as in single-end wiring configurations for LED tube lights.

In non-shunted sockets, the electrical contacts inside are separated, allowing for individual connections to each pin of the tube light. A jumper wire is used to bridge these two contacts, ensuring that power flows correctly to both pins when retrofitting the fixture with LED tube lights.

Best Use: Non-shunted sockets with a jumper wire are commonly used in ballast-bypass (Type B) installations, where the ballast is removed, and the LED tube is wired directly to the power source. This setup is ideal for single-end wiring configurations, providing an effective solution for ensuring the proper electrical flow in retrofit projects.

In shunted sockets, the electrical contacts inside are connected, creating a single path for the current to flow from the ballast to both pins of the lamp. Think of shunted sockets as having "joined" or "connected" contacts that direct the current to the lamp in one unified circuit.

Best Use: Shunted sockets are typically used with instant-start ballasts and are common in older fluorescent fixtures.