SANSI 27W 2700LM LED Motion Sensor Outdoor Floodlight, Security Light 300W Equiv 5000K Dusk to Dawn Light, Wide Angle Illumination,4 Modes for Yard, Driveway, White Bright Seires Wired Not Solar. ????Patented Ceramic technology : Chip on Ceramic, SANSI's Ceramic technology replaces the traditional Mcpcb aluminum substrate with a non-conductive ceramic heat sink, and directly solder the LED chip on the ceramic heat sink, effectively reducing the system thermal resistance between the LED PN junction and the surface of the heat sink, resulting in faster heat conduction and higher product reliability, makes the SANSI bulb has higher light efficiency.
