... approved 2 years warranty LED tube light, LED fluorescent light, T8 LED tube lamp, T8 LED fluorescent lamp Model: HS-T814FBXX Key Specifications/Special ... Driver inernal or external available Optical characteristics: Color: warm white(2,800-3,500K), Natural white(6,500+/-300K), Cool white(>7 ... ,000K)Color rendering index:greater or equal to ...