LED Flat Panel, troffer, edge-lit, backlight. It built most lightweight and efficient illuminating up to 50W/6500LM. 2.4G wireless control built unique feature for multi-function of CCT Color-temp changing within 3000K-5000K, Dimming (2.4G wireless and 0-10VDC standard hardwire dimmer parallel or individual use capable), and ON-OFF. No additional 2C DC wiring and no bulbs/tubes needed for saving much more labor cost. Applications of the new and upgrade/replacement project to offices, conference room, classrooms, library, show room, working shop/studio, clinics, laboratory, playroom, kitchen, garages/basement and etc. Set on standard top of T-bar/drop ceilings, surface and hanging mount capability.