Imitates the solar spectrum, customizes a more ideal full life cycle full spectrum supplementary light program, covering the entire visible spectrum of 400nm-780nm. Providing 4000K daylight, Color rendering index Ra is close to 100, infinitely close to natural light. This light is suitable for every cycle of plant growth, effectively promotes plant growth, and improves crop yield and quality. Chip on Ceramic, SANSI's patented technology replaces the traditional Mcpcb aluminum substrate with a non-conductive ceramic heat sink, and directly solders 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, producing a SANSI bulb with higher light efficiency. Color: White. Material: Polycarbonate.