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led t8 tube 4ft color:warm white/white,size:l1320mm*h300mmxl300mm sales material: 100% cotton model: mix order quantity: 25 items per lot easy remove ballast install] - jesled t8 4foot type b led light bulbs are dual-end powered and require a simple, energy-saving, remove-ballast installation. refer to our installation guide for details. long lasting tube] - jesled shatterproof 4ft t8 led tube lights have an outstanding life rating of 50,000+ hours these 4ft led lights can last 20+ years depending on use, eliminating maintenance costs and reducing relamp frequency..syi