Looking for a Ketra Alternative? Consider a Complementary Approach

Ketra is a premium dynamic lighting system from Lutron.

If you're searching for a “Ketra alternative,” the answer may not be to replace the existing lighting system.

Some projects simply need additional options for specific applications, such as specialized linear lighting, high-fidelity white light, circadian-oriented spectra, or custom spectral development.

That is where Yuji Lux may complement the overall lighting design.

Specialized Linear Lighting

Yuji Lux develops architectural linear lighting systems for applications where the details of the complete system matter.

Depending on the project, this can include:

  • coves and continuous architectural lines

  • custom lengths and assemblies

  • specialized profiles and diffusers

  • high-density and dotless solutions

  • long runs and power-feed planning

  • project-specific output and installation requirements

Explore Linear Lighting Solutions

Read the Linear LED Lighting Guide

High-Fidelity White Light

For applications where material appearance and color quality are important, Yuji Lux evaluates more than CCT and CRI alone.

Our work can include:

  • spectral power distribution

  • CRI and R9

  • TM-30 Rf and Rg

  • hue-specific color behavior

  • CCT and Duv

  • color consistency

High CRI LED Guide

TM-30 Color Rendering Guide

Circadian-Oriented Spectral Solutions

Some projects require more than changing color temperature.

Yuji Lux works with spectrum, intensity, timing, and melanopic response as part of circadian-oriented lighting applications.

This includes daylight-oriented technologies such as SunWave™ and ultra-warm evening solutions such as Dim-to-FlameWarm™.

Circadian Lighting Guide

Custom Spectral Engineering

When a standard LED solution does not meet the project requirements, Yuji Lux can support custom spectral and OEM development.

Depending on the project, this may include:

  • custom CCT and Duv

  • custom SPD

  • spectral matching

  • high-fidelity white light

  • low-melanopic spectra

  • specialized architectural applications

  • camera and imaging applications

  • custom LED and OEM programs

Learn How We Work

A Complementary Approach

A project does not necessarily need one lighting solution for every application.

Yuji Lux can be considered where a design calls for a specialized linear configuration, specific spectral characteristics, custom assemblies, or project-specific development.

The goal is to add the right lighting technology where the project needs it, without unnecessarily replacing what already works.

Frequently Asked Questions

Is Yuji Lux a replacement for Ketra?

Not necessarily.

Yuji Lux may complement an existing lighting system where a project requires specialized linear lighting, high-fidelity white light, circadian-oriented spectra, or custom spectral development.

What types of applications are a good fit for Yuji Lux?

Typical applications include architectural coves, continuous linear details, high-fidelity white lighting, tunable white, dim-to-warm, circadian-oriented lighting, and project-specific spectral solutions.

Can Yuji Lux develop custom spectra?

Yes.

Custom spectral and OEM development is one of Yuji Lux's capabilities. Feasibility, development scope, volume, and lead time depend on the project.

Does Yuji Lux offer tunable white and dim-to-warm?

Yes.

Yuji Lux offers tunable-white and dim-to-warm solutions for projects requiring dynamic white light, daylight-oriented spectra, or warmer evening lighting.



Ketra and Lutron are trademarks of Lutron Electronics Co., Inc. Yuji Lux is an independent company and is not affiliated with or endorsed by Lutron.

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Tell us what you're working on. We can help you select the right lighting solution, evaluate spectral and color requirements, or develop a custom approach for your project.