Experience the perfect indoor lighting by installing UL and DLC certified **4ft led bulbs**. It is energy-efficient and the ideal replacement for fluorescent tubes. It is an outstanding fixture for both your commercial and residential settings. LEDMyplace offers three types of 4 foot LED Bulbs, i.e., Ballast Compatible, Ballast Bypass, and Hybrid. But among these, all the simplest mounting is compatible with ballast. The most important thing you should keep in mind while purchasing 4ft LED Bulbs is to make sure to look at the CCT, ratings, and certification.