T12 Ballast Bypass LED Wiring Diagram

If you’re looking to upgrade your T12 fluorescent lighting fixtures to LED, you’ll need to bypass the ballast. This will not only save you money on energy costs but will also extend the lifespan of your LED bulbs. However, the wiring process can be confusing for those who are new to electrical work. In this article, we’ll go over the T12 ballast bypass LED wiring diagram in easy-to-understand terms.

What You’ll Need

Before we dive into the wiring diagram, let’s make sure you have all the necessary tools and materials:

Material Quantity
T12 fluorescent fixture 1
LED bulbs 1 per fixture
Wire cutters/strippers 1
Wire nuts 2 per fixture
Electrical tape 1 roll

Step-by-Step Wiring Diagram

Now that you have all the materials, let’s get started with the wiring process:

Step 1: Turn off the power

Before you start working on any electrical wiring, make sure to turn off the power to the fixture. This can be done by flipping the switch on your circuit breaker or disconnecting the power to the room where the fixture is located.

Step 2: Remove the ballast

The next step is to remove the T12 ballast from the fixture. This will usually require cutting off the wires connecting the ballast to the fixture. Make sure to follow the wiring diagram on the ballast to avoid damaging any wires.

Step 3: Connect the wires

Now that the ballast is removed, you can connect the wires from the fixture to the new LED bulbs. Here’s how:

  1. Connect the black wire from the fixture to the black wire on the LED bulb.
  2. Connect the white wire from the fixture to the white wire on the LED bulb.
  3. Connect the green wire from the fixture to the green wire on the LED bulb. If your LED bulb doesn’t have a green wire, it may have a different colored wire for grounding. Check the manufacturer’s instructions.
  4. Use wire nuts to secure the connections and wrap them in electrical tape for added protection.

Step 4: Install the LED bulbs

Finally, insert the LED bulbs into the fixture and test them out. If they don’t turn on, double-check your wiring connections and make sure the power is turned on.

FAQs

Q: Can I use any type of LED bulb with a T12 fixture?

A: No, you’ll need to use a specific type of LED bulb that’s compatible with T12 fixtures. Look for bulbs that are labeled “T12 ballast bypass” or “direct wire” to ensure they’ll work with your fixture.

Q: Can I still use a dimmer switch with LED bulbs?

A: Yes, but you’ll need to make sure the dimmer switch is compatible with LED bulbs. Look for switches that are labeled “LED compatible” or “dimmable” to ensure they’ll work properly.

Q: Is it safe to bypass the ballast?

A: Yes, as long as you follow the proper wiring instructions and use the correct materials. Bypassing the ballast will not only save you money on energy costs but will also reduce the risk of fire and electrical hazards.

Q: How long do LED bulbs last?

A: LED bulbs can last up to 25,000 hours or more, depending on the quality of the bulb and how often it’s used. This is significantly longer than fluorescent bulbs, which typically last around 10,000 hours.

Q: Will bypassing the ballast affect the brightness of my lights?

A: No, bypassing the ballast should not affect the brightness of your lights. In fact, LED bulbs are often brighter than fluorescent bulbs, so you may notice a difference in brightness after making the switch.

Q: Do I need to hire an electrician to bypass the ballast?

A: No, you can do it yourself as long as you feel comfortable working with electrical wiring. However, if you’re unsure or don’t have experience with electrical work, it’s always best to hire a licensed electrician to ensure the job is done safely and correctly.