2Pcs 1x4 LED Dimmable Flat Panel Light 4000LM 5000K Drop Ceiling Troffer Fixture
Dimmable : 0-10V (5%-100% brightness). Dimmable LED also provide the perfect amount of light for any situation, whether you need a bright light for reading or a softer light for relaxing. Luminance Efficiency : 110 lm/W.