QL Light Co.,Ltd is one of the leading China ul approved led strip lights manufacturers and suppliers with professional factory. Welcome to wholesale products from us.Features of Constant Current Strips:1. Constant current version: with stable current, suitable for high quality requirements project.2. DC12V/DC24V input: Can work with any DC12V/DC24V PWM control system.3. with temperature Sensor: Can lower the current to protect itself when the temperature is too high.4. Brightness uniform: With same brightness from the first end to the last end for around 10m.◆ LED Type: SAMSUNG SMD5630◆ Input Voltage: DC12V/DC24V◆ Color: 2700-7000K◆ LED Qty: 60LED/m◆ Beam Angle: 120 degree◆ IP Ratio: IP20, IP67 Version◆ IP20: Non-waterproof Version◆ IP67: With Silicone TubeSpecifications:Different IP version:Applications:1. Decorative lighting for festivals, events, shows, exhibitions2. Architectural lighting for canopy, corridor, window, archway,3. Backlight or edge light for signage4. Path or contour marking5. Channel letter lightingLED Knowledge: Copied from LED NEWS.ORG (www.lednews.org)What’s Color rendering index ?POSTED ON MAY 25, 2013 BY ADMIN IN LED KNOWLEDGE WITH THERE ARE NO COMMENTSColor render refers to a different spectral light source irradiate to the same color object, presented the characteristics of different color. Usually represent by color rendering index (Ra). The higher the color rendering index, the better the color rendering properties.The level of light represent object called color rendering, also known as color reproduction extent, high color rendering light source with better color reproduction, and the color is closer to the natural colors, low color rendering light with poor color reproduction, and the color with more deviation.Principally, artificial light is same with natural light, people’s eyes are able to identify the colors correctly, of course, it’s depending on the location and purpose of the lighting.CRI is the relationship between object true color and standard light source. The determination of the Ra value is defined in the DIN6169, which 8 colors are compared between standard light source and the testing light source, the smaller color difference indicates that the color of the measured light source color is better.Light source Ra value is 100 means things appear in its light source are consistent with standard light.CRILevelGeneral application 90-1001AUsed in places require accuracy and contrast color. 80-891BUsed in places require correct color judgment. 60-792Used in moderate color rendering places 40-593Used in places require lower CRI. 20-394Used in places no specific requirement.Here list the CRI (Ra) for the common used Light source:Incandescent 97Daylight fluorescent 80-94White fluorescent 75-85 Warm white fluorescent 80-90Tungsten halogen lamps 95-99High-pressure mercury lamp 22-51High pressure sodium lamp 20-30Metal halide lamps 60-65Sodium thallium indium lamp 60-65The dysprosium lights more than 85
