This NEW product is made to replace the fluorescent light bulb tubes found in 2' X 2' fixtures, used in dropped tile ceilings. It is usually found in bathrooms, hallways, and small offices. It is most annoying when one has to turn on and off the light switch just to use the rooms. Now you can fix that problem with just a little rewiring to by-pass the ballast and use two of these LED tubes. When you finish, you will have twice as much light, save energy and it will light the first time you turn on the switch!