Feature: "Specifications: Works with T8 and T12 lamps with medium bi-pin base.Great for retrofitting your fluorescent fixtures to LED tubes, replacing old florescent lamp holders and more. High quality: Made from high quality fireproof PC, the T8 lamp holders are heat resistant and 100% safe from fire hazard, durable even after years of use. Advantage: Easy to Use: Get your project done in minutes with T8 Lamp Holder Socket Tombstone with 10” 18 AWG Wire. Just connect the wires (not included), plug the tube in and twist, a plug-and-play solution for your lighting projects. Wide Application: Perfect for anywhere from home, office, basement, closet to studio that needs a lighting retrofit, while staying low profile between the T8 lights.".