Opple Light Master 4 discussion thread (new 2023 model)

[Limsup]

@iamlucky13

To illustrate with the 5000K LH351D, for example, Zeroair’s measurement of R9 = 43 seems low in general for a ~90 CRI emitter, but not unreasonably so. The even lower measurement from the Opple Home 3.3.1 of only R9 = 30.1 would make me scratch my head a bit.

I had high expectations for the LH351D in the SP10 Pro, especially since it was marketed as having high CRI. However, I was surprised by how greenish or pale it made my skin appear.

Here’s a photo I took two years ago using the same light. If you look at the top row of the photo, you can get a sense of the red content in the light and how it compares to the LatticePower 6000K and the Nichia 519A. From my observation, the 519A has the most red, followed by the TS10 (LatticePower 6000K), and then the LH351D. And this observation aligns very well with the measurements from Opple Home 3.3.1. (R9 from 3.3.1: Lattiepower 6000K=56.6, LH351D 5000K=30.1, 519A=91.6. The first two numbers are from my previous post and the number fro R9 are taken today)

The above photo is from my post here:

Analyzing the tint of LEDs by shining a light on your skin

First thing I do when I get a new flashlight is to shine the light on my skin. From my experience, shining the light on my skin gives me a pretty good idea of the quality of the light. Now that I have somewhat usable measuring instrument for lights, I have become a little more confident of my testing method. I think it would be useful for community members, so I decided to share it with the community. I used Opple Light Master Pro (G3) to measure CRI and calculated DUV from waveformlighting.com.…

I’m also puzzled by the R9 value of 30.1, but it’s just a rough estimate from a relatively basic sensor. A higher number might make more sense. However, since these measurements are only approximate, the absolute value doesn’t hold much significance and shouldn’t be taken at face value. I’m using it more as a comparative tool to evaluate my own measurements objectively. In that sense, the measurements from version 3.3.1 were the most useful for me, as they provided a reliable way to measure what I see.