Adopt highly active powder, low light decay and high effect. Daylight, cool white and warm white are made to adjust the color temperature need in different environment. Advanced dusting tech can increase the light effect and reduce light decay. Cathode protection rings in the two sides of the tube to protect the tube to be black. Adopt the tri-spiral fuse to take along enough powder to make it long life. Widely used as lighting in family, factory, shopping center and school.