The only T8 fluorescent lamp that saves more than 10% of energy in existing indoor luminaires. Can be directly retrofitted into existing fluorescent fittings operating on conventional EM or HF gear in indoor applications. Uses the latest highly efficient phosphors and special filling gas. High-quality lighting with good colour rendering (CRI>80). Light output comparable to other TL-D Super 80 colours. Lumen maintenance and lifetime the same as other TL-D Super 80 colours. Dimmable.