LED COB Lamp Chip 3W Diode 13x13mm Square Light Bulb Warm, Natural, Cold White
Size: 13x13mm. The difference between LED light COB and SMD is that COB LEDs have more diodes. Emitting Colours: Warm White (3000K), Natural White (4000K), Cold White (6500K). Luminous Surface: Φ 11mm.