Some lighting brands buy off-the-shelf LEDs and call it a day. Not us. At Luminii, we engineer our own LED technology controlling every detail, from die to bracket.
Custom LED Die: We start with a narrow band, 455nm custom LED die, underdriven at just 50% of its rated power. Why? More life, more efficiency, and the perfect match for our custom phosphor blend, giving you beautiful color and high-performance light.
Gold Bond Wire: We use 99.99% pure gold to connect our die, not a copper alloy like most. Gold means long-term reliability, less power loss, and virtually no degradation over time.
Premium Lead Frame: Made from high-purity copper and plated with 40μm of silver, our lead frame offers superior conductivity and moisture resistance.
Reinforced Brackets: Our bracket is built from high-grade Polyphthalamide (PPA) delivering:
At Luminii, we create our own proprietary blend of nitride and aluminate phosphors engineered for maximum color quality, thermal stability, and efficiency that lasts.
Why It Matters
Phosphors impact everything: CRI, color consistency, and longevity.
Our phosphors are designed to:
Controlling both the die and the phosphor means we get the best of both and so do you.
By evaluating TM-30 in conjunction with Standard and Extended CRI values, we develop LEDs that deliver balanced, high-quality light, accurately rendering colors, and closely mimicking natural light.
CRI (Color Rendering Index)
CRI quantifies how accurately a light source renders colors compared to a reference illuminant (incandescent for <5000K, daylight for >5000K). The metric ranges from 0 to 100, with higher values indicating better color fidelity. The standard CRI calculation (Ra) uses the average of the first 8 test colors (R1–R8), which are desaturated pastel tones. While useful, CRI does not account for saturated or red hues critical in many applications.
R1–R8 (Standard CRI Values)
Standard CRI values are used to calculate the average CRI. They measure how a light source renders common or pastel colors which are useful for everyday applications…but they don’t tell the whole story.
R9-R15 (Extended CRI Values)
These values go beyond standard CRI to evaluate how well a light source renders saturated or specific colors supporting applications that require high-quality lighting.
R9 Value: Measures how well deep, saturated reds are rendered. Important in medical lighting, skin tones, food, and art.
R13 Value: Evaluates how well light pinkish tones typical of Caucasian skin are rendered
R15 Value: Evaluates more golden or yellow-based skin tones, ensuring lighting looks natural across different complexions.
R9 (strong red): Critical for accurate skin tones, medical lighting, and food presentation.
R13/R15: Related to complexion and natural tones. High R9 and extended CRI performance provide a more complete picture of spectral quality.
TM-30 is a modern color rendering metric designed to improve upon the older CIE CRI standard. Unlike CRI (which uses only 8–15 pastel colors), TM-30 analyzes 99 real-world color samples — covering a wide range of hues, saturations, and materials.
This results in a more accurate and realistic assessment of how light renders colors. TM-30 includes two key metrics:
It also provides detailed graphical tools to visualize color distortions and hue shifts.
TM-30 helps lighting professionals make better design decisions and enhances visual experience in various settings.
Halogen lamps are known for their incandescent origin and perfect CRI of 100, and thus have long set the benchmark for natural, warm, and accurate color rendering. Their ability to reveal rich reds and subtle warm tones makes them ideal for creating inviting, human-centric environments. At Luminii, we take pride in replicating the unique visual qualities of halogen lighting through advanced solid-state technology.
Through precise spectral tuning and proprietary phosphor engineering, our LEDs consistently deliver a CRI of 95+ with R9 values above 90, producing vibrant, true-to-life colors across a wide range of applications. But CRI alone doesn’t tell the full story. What matters most is how closely the light spectrum aligns with natural daylight and halogen’s signature warmth—a quality that our LEDs are specifically designed to achieve.
Binning is the process of grouping LEDs by color to ensure uniform output. At Luminii, we go beyond standard methods to deliver true 1-step MacAdam Ellipse performance across our linear strip lighting.
What That Means:
How We Do It:
Paired with our custom phosphor blend and tuned LED die, this precision approach ensures flawless color rendering ideal for applications where light quality matters most.
Others: Many other lighting manufactuers just randomly take and place LEDs on their LED tape. While directly comparing two LEDs together, you may not notice a color difference, if you stack many LEDs from the same side of a MacAdams ellipse together on the LED tape, you may notice a slight color striations across the whole LED tape.
Luminii: Luminii meticulously places each LED on the LED tape using our micro bin processing so that there is color consistency across the entire LED tape, meaning the color at the beginning of the LED tape exactly matches the color at the end of the tape.
That’s why we design everything around our light engine, from the PCB, to the optics, to the extrusion, to deliver unmatched reliability, thermal performance, and architectural quality.
Benefits of Luminii PCB Design:
Linear dimming systems have a relationship between the dimming value and the brightness intensity. In logarithmic dimming systems, the dimming value changes faster at brighter levels and at the same time, slower and deep dimming levels. Because our eye perceives light logarithmically, pairing the two systems is important for us to perceive the light correctly. Because of this, Luminii created a logarithmic dimming curve customizing the dimming level at each dimming percentage to ensure the most amount of control throughout the entire dimming range.
Luminii’s lenses are designed in-house for linear LED applications, using optical-grade, UV-stabilized polymers tested for over 1,000 hours under UV, heat, and humidity to prevent yellowing, warping, or degradation. Each lens incorporates custom engineered diffusing materials and a uniform matte surface finish, eliminating glare from reflective surfaces while optimizing Light Down Ratios (LDRs). This ensures dot-free illumination, precise beam control, and high optical efficiency, all while preserving the LED’s original CCT and CRI for true-to-spec color rendering and clean architectural presentation.
Luminii extrusions are made from 6063-T5 architectural-grade aluminum and engineered in-house for superior rigidity, exceptional thermal management, and optical alignment. With a 0.035” minimum wall thickness, each profile provides robust structural support and effective heat dissipation making them ideal for long continuous runs and high-output applications. In addition, the added rigidity proves invaluable during the installation since our long extrusions maintain structural integrity when handled from one end.
Every profile undergoes thermal and optical simulation to ensure efficient cooling and light performance. Designed for clean integration,
extrusions feature concealed mounting, finish matching mounting, flush endcaps and invisible hardware for a refined architectural look.
Proudly USA Made, and available in lengths up to 12 feet with broadest finish spectrum in the industry. Luminii extrusions provide both technical precision and visual impact in any application.
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