DF down light series are the fixed recessed downlight with larger light-emitting area and smaller beam angle compared DB series. The greatest advantages are super high CRI and light efficiency. More than 100 lm/W under 3000K & CRI>90 on whole lamp against 5 years real warranty.
Advantages
Patent private mold design , choose strong housing with good heat dissipation;
Choose branded LEDs like CREE, CITIZEN, EPISTAR against LM80 standard;
Choose ceramic PCB against pure gold thread, high stability and low light decay risk in future;
Choose branded driver like PHILIPS, TRIDONIC, LIFUD, BOKE, etc;