Environmental friendly, without mercury Pure light spectrum No UV ray radiation, not attract insects Long lifespan, more tha Optical parameters:Light Source: 1W high power LEDLED / Chip brand: Epistar and Bridgelux availableLED quantity: 5 piecesLight Color: Warm white 2700~3000K, Neutral white 3900~4200K Cool white 5500~6000K Red, green, blue, yellow, pinkCRI: 78~83Beam angle: 15 / 30 / 60 ...