Can a full spectrum LED strip be tunable white, and which colour temperatures are available?
Fixed options run 1800K, 2200K, 2400K, 2700K, 3000K, 3500K, 4000K, 5000K and 6500K, all binned inside 3 SDCM and 1 SDCM on request. For adjustable schemes the dual-channel tunable white LED strip mixes two full-spectrum phosphor sets, so every point across 2700K-6500K is still Ra 95 with R9 above 90 — unlike RGB-derived tuning, which is only accurate at its calibration point and drifts either side of it.
Fixed CCT selection by application
1800K–2400K reads as candle and low-sun warmth and is used for hospitality, wine displays and evening residential layers; at these temperatures full spectrum matters because warm blue-pump phosphors typically collapse R9. 2700K–3000K is the residential and boutique-retail default. 3500K–4000K suits workplaces, kitchens and clinical rooms. 5000K–6500K is specified for colour inspection, photography and daylight-matched human-centric schemes.
Tunable white without losing fidelity
A dual-channel tunable full spectrum board carries two phosphor sets — typically 2700K and 6500K — on alternating positions, mixed by the driver. Because both channels are themselves full spectrum, every intermediate point on the travel is still Ra 95 with R9 above 90. RGB or RGBW-derived tuning cannot do that: fidelity is only correct at the calibration point and degrades either side of it.
Control is DALI DT8, 0–10V two-channel or PWM two-channel. Where several tunable runs share one space, specify 1-SDCM binning as well, since mismatched channels in adjacent coves are far more visible than a fixed-CCT mismatch.
Industry references and standards
- Metrology & laboratories — ANSI/IES TM-30 Colour Rendition Method — Rf / Rg fidelity and gamut metrics quoted throughout our spectral data.
- Museums & conservation — CIE 157: Control of Damage to Museum Objects by Optical Radiation — Exposure limits and damage factors used by museum lighting schedules.
- Metrology & laboratories — NIST Optical Radiation Measurement — Traceable photometric and spectroradiometric measurement references.
More full spectrum answers
- Where are high quality full spectrum LED strip lights actually worth the money?
- Do full spectrum LED strips flicker, and do they emit UV or too much blue light?
- Are there waterproof full spectrum LED strip lights for outdoor use?
- When should you choose blue-excited full spectrum CRI LED lights?
- Which projects need violet-excited full spectrum LED strip lights for photography and colour work?
- How do I choose the right CRI LED strip — blue-excited or violet-excited?