About LightingWill LightingWill is established since 2009. Professional LED manufacture, specially in LED lighting products and accessories. The objective of Lightingwill is to offer superior quality LED items to our clients, and enjoy a bright and comfortable life. Welcome to search "LightingWill" on Amazon to find more LED products :) What is CRI Color Rendering Index, it describes how a light source makes the color of an object appear to human eyes, and how well subtle variations in color shades are revealed. The CRI is a scale from 0 to 100 percent indicating how accurate a "given" light source is at rendering color when compared to a "reference" light source. The higher the CRI, the better the color rendering ability. Light sources with a CRI of 80 to 90 are considered good at color rendering. Light sources with a CRI of 90 or higher are excellent at color rendering and should be used for tasks requiring the most accurate color discrimination. Specification Item SMD3528-300 5Meter 12V DC 24W 2Amp LED Flexible Strip Light Color: Warm White (3000K-3500K) Lumen Output: 200LM/Mtr LED Type: single color SMD3528 LED QTY: 60 LEDs/Meter, total 300 LEDs Input Voltage: DC12V Wattage (max): 4.8 Watt/Meter, total 24Watt Cuttable: Every 3 LEDs per 2'' can be cut Beam Angle: 120 Degree Dimming: Yes Size(W*H/mm): 10*4 Weight: 0.15kgs Length:16.4ft(5 meter)per roll PCB Color: White PCB Backing: Double-sided adhesive backing Waterproof Type: Waterproof IP67 Package included: 1x 5meter per roll LED Flexible Strip 1x 5.5mm DC female to screw terminal end adapter Applications: Widely used for home, office, hotels, clubs, shopping malls Architectural decorative lighting, boutique atmosphere lighting