How to bypass ballast

I removed the ballast. Now how do I connect the cables for led T8. Here is how the cables look like:

I don’t know what ballast you are using or what kit your trying to install as far as I know automotive wise LED headlights don’t really use a ballast, I would highly suggest possibly inquiring with the local automotive scene or possibly a forum more dedicated to automotive DIY for better insight for this particular project.

It is for the kitchen light.

Here is the picture: https://photos.app.goo.gl/sii4NAtodpCZ2nRW7

Are your tubes powered from both ends or one? The tubes should have come with a wiring diagram. If powered from both ends, incoming black goes to one end and white goes to the other. If powered from one end, the socket gets black to one side of the terminal and white to the other for both tubes. Twist and pull to remove the existing wire from the sockets. Google the brand for wiring diagram if you don’t have it. The tubes are in parallel.

Here is a video. Be sure to use un shunted sockets for single ended type tubes.

The video link just said 404 not found.

Here is the picture of the ballast: https://photos.app.goo.gl/q7H4rbsaKeUB6CXHA

Here is the new led.

The LED you reference is a direct replacement bulb, no rewire needed. The ballast remains in this system. I would not recommend this system unless you are unable to rewire the fixture yourself. The ballast is the leak link and if possible, buy a bulb that does not require one.

Let’s say I had this one: Amazon.com
Here is its installation guide: https://images-na.ssl-images-amazon.com/images/I/C1ga0sru6DS.pdf
It looks like reds and blues on the right go with black. And white with yellow on the left. Do I connect the the red and blue on the left to the white and yellow or ignore them?

All you need to do is connect the incoming black to all the right side sockets and the incoming white to all the left side sockets. Since this is a two ended system, it doesn’t matter if the sockets are shunted. This results in a parallel circuit. Use the right diagram as an example.
I don’t see any red and blue on the left side of the bulbs in the diagram. The ballast is gone at that point.

In the Hyperikon one there is no red and blue on the left side. But in my fixture there is. Here are the pictures: https://photos.app.goo.gl/JzLEQYRG3Co4stSC6
So, I guess I could consider the red and blue on the left as yellow?

Yeah, you could wrap the ends with white tape to alert future electricians or put some blue painters tape on the end with ( - ) written on it. You only need one wire per socket and it looks like you have an extra on both sides. I would remove the extra wire from both sides. The sockets easily pop out to access them better. Also, write with marker somewhere that the fixture is LED only so no one makes the mistake of putting a fluorescent in it at a later date.

If you want to get rid of the ballast, why not just buy a set of the 12V DC T8 tubes that are designed for use in travel trailers and similar uses. You can buy an inexpensive DC converter to convert house current to 12V DC and wire up the tubes directly to the DC converter with the existing fixture.

Another alternative is to buy the tubes with the converter built into the tube. You wire one end of the fixture to 110V and plug the active end of the tube in that end. Here is an example https://www.ebay.com/26486615897

A lot less expensive and easier way is to buy a spool of adhesive- backed strip lights and use the same 12V converter, mounting the strips on the metal plate that formerly covered the ballast. I had two overhead lamps in my kitchen that I converted in this way. One had those expensive U shaped fluorescent tubes. When the ballast died I converted to 12V strip lights at a cost less than replacing the ballast alone. The other used four standard 4’ tubes encased in a wood frame. I took out both fluorescent units and mounted the strips on coroplast and suspended it closer to the diffuser. I now have more light than the 4 tubes ever produced with fewer watts.

Change the times sign to an ex.

Well, on “The Six Million Dollar Man”, the obvious answer was to connect red/white/blue, but that was a trap, and they had to connect red/yellow/blue instead.

Eh, dunno if that helps. :laughing:

I wondered if those LED replacement tubes would have horrible horrible flicker like LED Christmas-tree lights (or Cadillac taillamps).

I don’t see it but I don’t see a lot of things.