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Re: Best RGBWW controller for led light strip...


 

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Interesting information, thanks for sharing. I think I need to get an update on the LED stuff ;-)

Regarding hardware, i?m doing just residential installations, so most of what you mention seems to be over the top for me.

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Von: [email protected] <[email protected]> Im Auftrag von Pixels Bits
Gesendet: Sonntag, 31. Mai 2020 22:13
An: [email protected]
Betreff: Re: [crestron] Best RGBWW controller for led light strip...

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CRI is for the static colors. Not the color combinations that tend towards CRI 80... CRI is also an antiquated methodology for color rendering anyways. IES has adopted TM-30 which has a higher number of color samples for evaluating color accuracy - 18 vs 99.

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In addition, tunable white systems are evaluated based on accuracy to black body curve. Tunable white using CW/WW is tuning color based on color combination of two points on a line - 2700K and 6500K. Lines can¡¯t hit points all points on a curve. In addition, color combinations of 3 primaries and white aren¡¯t color accurate, the guys at Solid state lighting research department at the PNNL have shown that to get any modicum of accuracy along the black body curve you need at least 4 primary colors - like Ketra (RGB+Lime) - the more the better, 7, 9, 12, 24. Sunlight is a combination of multiple wavelengths not just RGB, tech is getting us close to more narrow band control of lighting.

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Commercial meaning Enttec show controllers, ETC, Pharos, Color Kinetics... RDM utilization is killer so SACN is insufficient and you really should be using ArtNet for bidirectional communication. Most downlights I used have iBeacon built in so I can do Bluetooth/RSSI evaluations to know where people are, feedback on thermal output, LED degradation, hour usage... Data data data. There are some chipsets in the process of building in motion sensing based on BLE wave evaluation rather than having to use PIR. You¡¯re talking about true digital light fixtures with firmware upgrades and the ability to have functionalities added to them.

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Exciting times.



On May 31, 2020, at 1:13 AM, Thorsten K?hler <thorsten.koehler@...> wrote:

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Oh, and to control the Sunricher device you mentioned, you need an additional DMX gateway to be able to control it via Crestron, so that?s on top.

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Von: [email protected] <[email protected]> Im Auftrag von Pixels Bits
Gesendet: Samstag, 30. Mai 2020 23:16
An: [email protected]
Betreff: Re: [crestron] Best RGBWW controller for led light strip...

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Sunricher SR-2108B-M5-5...

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Sunricher is the OEM manufacturer for most LED/color tuning tapelight ¡°manufacturers¡±. They¡¯re $90 on Amazon.

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RGBWW is trash for tunable white color accuracy. Not accurate to black body curve and for high end troffers and linear based fixtures there are better solutions... just more expensive and you have to hand the chipset to the fixture assembler... or better yet, just do it yourself.

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Also, don¡¯t skimp on the DMX controller. I¡¯ve used the Enttecs and other cheaper solutions and when we are pushing lighting scenes carrying dozens of addresses you get inconsistent response - popcorning, level control issues. Go commercial grade for multiple load control. DMX is our main lighting control infrastructure for everything.




On May 30, 2020, at 1:43 PM, rickwookie <rickwookie@...> wrote:

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[Edited Message Follows]

Will report back when I¡¯ve tried it.

To the OP if you go DMX, this is an example of a 5-channel decoder with a fairly high current capacity. You may find it more economical to use a pair of lower cost 3-Chanel DMX decoder drivers, and just use two of the three channels on the second one for the WW/CW output.

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