Simple breakdown of LED Datasheet terms important for LED lighting design.
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0:01 | Part 1
• color: warm white, cool white, neutral white
• color temperature aka CCT aka K aka Kelvin
• flux values aka lumens
2:52 Part 2
• Why don't you get lumens at 85° for all vendors?
• test current and forward voltage
• efficiency in lumens/Watt
5:45 | Part 3
• cautions about sorting LEDs by efficiency
• CRI (color rendering index) 🌈
• metamerism 🧡❤️♥️/♥️♥️♥️
8:33 | Part 4
• more on CRI 🌈and when it’s important for machine vision
• maximum current ⚡️rating and how NOT to use it
11:27 | Part 5
•Viewing Angle - is it what you assumed it is⁉️⁉️ Probably not! Plus --
•Beam Angle 📐
•FWHM
•Lambertian Distributions
•flux 🚿
•forward voltage ⚡️
•forward current
•maximum temperature 🤒
21:02 | Part 6
•Binning! 🪣🪣🪣🪣🪣
•Flux and chromaticity 🌈 bins, and
•Do white LEDs emit UV light? 🤔
30:30 | Part 7
•Do you know LEDs warm up 🔥when they're on?
•Do you know what happens 🙀when they warm up?
40:05 | Part 8
•Why size matters 🐘
•Most important data for optical engineers that's not on the datasheet! 😲 -- ray files !
#led #ledlighting #hardware #opticalengineer #illumination #electronicsdesign #lights #hardwaredesign #ledlights #datasheet #cree #rayfile
