SATCO NUVO's LED Linear T5 Ballast Compatible Lamps come in 2-foot and 4-foot sizes, have over 50 percent energy savings compared to standard T5 systems, and provide enhanced safety thanks to the integrated thermal fuse. Our all-glass tube design not only delivers exceptional clarity, but also adds a touch of elegance to any space. Select models are DLC approved, ensuring top-notch quality and efficiency. Upgrade your lighting today and take a step towards a greener, more efficient future. Sold as a 25-Pack