Aphyni 2x2FT LED Flat Panel Light 40W Dimmable 0-10V&3000K/4000K/5000K Selectable Back-Lit Recessed Drop Ceiling Light 4400LM Commercial Fixture for Office Dustproof ETL/DLC (4 Pack)

【3 SELECTABLE CCT】 2×2 FT ceiling panel with 3 color selectable (3000K/4000K/5000K) slider switch on the back, you can choose one in soft white, bright white or daylight before installation. 3 Color in 1 Light.
【SMOOTH DIMMING】 2X2 troffer light compatible with standard 0-10V dimmers for seamless dimming. And 20W/30W/40W switchable on the back slider. 2×2 ceiling panel provide instant bright, no flicker and buzzing to protect your eyes.
【ENERGY SAVING】The 4400LM troffer light is designed with high-efficiency LED chips to replace traditional fluorescent light, high-efficiency (efficacy over 110LM/W) light source, reducing carbon emissions and your electric bill by 85%.