First check your old fluorescent tube is double ended power or just single ended power.
Single ended vs double ended led tubes.
Type a works with existing fluorescent t8 electronic ballast where power comes to both ends of the tube.
Single ended tubes receive all of their power from one side.
The main difference between single ended and double ended led light tube is the method of rewiring when it comes to replacing the old fluorescent lamps.
Many school systems and contractors choose the dx2 because for fluorescent t8 lamps the single end wiring option is best but for the older t12 systems the double ended shunted installation is more convenient.
If your old fluorescent tube is double ended power under is introduction of installation for tubes double ended power.
Type b works with double end powered with no ballast.
Type b ballast is by passed and removed.
Unlike the single ended tube the double ended tube has both live and neutral pins on each opposing side of the tube.
Single ended configurations will typically have a sticker label on one end of the tube with the words ac input or similar.
When an led tube is single ended it means the tube light is powered from one end only and consistently so when you install multiple tubes together for a larger or denser lighting area via daisy chain or multi chain installation.
Some single ended configurations can accept power from either end.
What this means is that you can easily replace your old led tube.
Today introduce two ways of using led tubes to replace old fluorescent tubes.
Power comes to both ends of the tube.
A double ended led tube is another type of led tube that has a slightly different property.
In a double ended configuration the two pins on each side of the tube are the same polarity.
Double ended lamps use shunted lampholders so that the two contact pins on the live side of the lamp are.
Fluorescent lamps are typically double ended as well making retrofit applications easier to complete with double ended led lamps.
The diagram below figure 1 shows the standard wiring of a fluorescent lamp.
A double ended led lamp is a lamp that has the live and neutral pins on the opposite side of each lamp.
The most obvious of which is the single and double ended tube.
Knowing whether you ll need a double ended t8 led or a single ended t8 led tube for your lighting project gets you on the right track to completing the ideal renovation.
When electricity is wired to power your led tube from both ends you would call the tube dual or double ended.