-long Life: Lasts 8,000/10,000 Hours Average Rated Life 1-year guarantee -Energy Efficient Save up to 80% in energy costs compared to standard incandescent Phosphors Powder enhance lumen efficacy and color rendering High light output -Broad Assortment Wide range of color options 2850K,3500K,4100K,5000K,6400K,7000K -Technical Data Highest quality starters used to ensure lamp life Operating temperature 0-140 degrees F Lead-free glass -Broad Assortment Single and Quad Tube 2-Pin Quad and Triple Tube 4-Pin -Applications: Table lamps -Wall sconces -Ceiling fixtures -Down lighting -Corridor Lighting