In order for LEDs to achieve higher lumen efficiency, the unfortunate sacrifice is CRI. The Color Rendering Index (CRI) is the measurement of how close artificial light can reveal colors of an object compared to natural light. In other words, CRI is a measurement of how close LED light looks compared to natural sunlight on a scale of 0-100. Our next generation LED Linear High Bay fixtures and LED Flood Lights now boasts a high proven 201 lumens per watt (LPW), with an incredible > 80 CRI. EnviroLux LED Systems now have the highest lumen per watt and highest CRI LED lights we have ever developed!