1 BLF member @stevechang work(ed) for Opple and helped us out with improving the App for better measuring results. However, Opple has dropped this project, and also dropped the upcoming Light Master 5 project, as per Steve’s information.
2 The official Opple Smart Lighting App is not working anymore.
These APKs can be installed together with the official apps and next to each other. There’s no need to uninstall the originals first. A version for LM3 can be found here .
As other people mentioned, unfortunately you can’t get rid of the GPS permission if you need to scan for available Bluetooth devices. See the official documentation here: Bluetooth permissions | Connectivity | Android Developers
August availability, huh? I wonder if the people that recently ordered will be waiting until then for shipment.
The AE page had no indication of that. In fact they say 160 in stock???
Edit 11/2024:Note: please DO NOT BUY until you’ve read the following.
Upon receiving and testing Opple Lightmaster 4, I found it could give erroneous values in all the important parameters such as CRI, R9, Duv, CCT. We subsequently found out basically the development team of LM4 was let go in the middle of LM4 development secondary to economic/financial consideration. There has been some minor change to the behavior of LM4 since the initial release, but a real fix is UNLIKELY TO EVER COME.
There is an excellent synopsis of various discussions & app developments that have occurred following the initial release HERE.
My humble opinion: IME, especially with high CRI LED such as Nichia, GT-FC40, Lightmaster 4 does an ok/decent job, as long as I keep in mind it is an amateur grade device and check my results vs those of pro reviewers. I do like its continuous reading of Duv A LOT because it helps tremendously with comparison tests (green reflection vs purple reflection AR lenses, change of Duv with output, etc.).
This is what my email from Opple states:
“We are very excited to report that the Light Master IV(4) has now been released.”
And order from Aliexpress - maybe standard with every order, but:
“This order will ship in 9 days. If not, your refund will be issued automatically.”
Fingers crossed. Sending exciting email for product not available until August would be unnecessary poor form so I hope this baby will be in my hands soon.
You have to select the correct model. The price defaults to the V2 device… Go down to where it syas “color” and select the V4. Th picture will change. AND, the price to $39.65 (US)
Yes, but none of those apply to the meter… so they are stuck using “color”… or so I guess.
I have seen other vendors use “color” for things like size of clothes or length of wire…
So an educated guess is that they used the only option they have to allow a selection of models.
I just put in my order for the 4th Gen meter.
People look at me weird for having dozens of flashlights… This will give them something else to talk about, LOL.
The FCC filing for the Light Master IV from February contains detailed internal photos. From these you can see the spectral sensor has been changed to either an AS7343 or AS7341, both of which are a significant upgrade over the original. They still only have a very limited number of measuring points compared to a dedicated spectrophotometer, but it’s definitely a more capable device than the previous version.
Very strange. When I saw that thread about Opple 4 yesterday I ordered one. Today I saw in my AE account that is is already shipped. Myabe Opple 4 will need some certification to be released in EU. For chinese market that it is not problem.
recommended app and version, see below and here
