

One housing family, six sizes (6W / 9W / 11W / 14W / 22W / 25W) · Ø85–Ø128 mm · SUMLINK HCL configuration (tunable white engine + Matter over Thread)
Tunable white is a colour feature. Human Centric Lighting is a measurement obligation. Below are the quantities a lighting designer needs to model BY001 against WELL v2, CIE S 026 and IEC TR 63158 — including the ones still awaiting third-party verification.
Melanopic response across the tuning range
Move the control to see melanopic output across the tuning range.
M/P Ratio
0.40–0.90 across 2700K–5000K (design target)
Melanopic DER, CIE S 026:2018, across the tuning range
Design target
Percent Flicker
< 1% (low-ripple driver, IEEE 1789 NOEL)
Across the dimming range; IEEE 1789-2015 no-risk region
Design target
SVM
≤ 0.40
Stroboscopic visibility measure (SVM); EU Ecodesign Regulation 2019/2020 limit 0.4 at full load; test method IEC TR 63158
Design target
Colour Shift
< 0.003 over full dimming range
At 6 000 h, Ta 25 °C
Design target
SDCM
≤ 2 SDCM
MacAdam ellipse, initial, ANSI C78.377
Design target
TM-30-20
Rf ≥ 95 / Rg ≥ 100
Fidelity and gamut index, ANSI/IES TM-30-20
Design target
CRI Ra
CRI ≥95 (Bridgelux Vesta Thrive TW)
Measured at 4000 K reference point
Design target
Glare · UGR
< 19
4H8H, transverse viewing
Design target
02 — Selection
Per-SKU dimensions and profiles are released with the BOM. Below is what is confirmed today.
Finish ● Black ○ White · All models 2700–6500 K
| Model (SKU) | Power | Housing Ø × H (mm) | Cutout (mm) | Beam angles | IP | CCT | CRI | Light engine |
|---|---|---|---|---|---|---|---|---|
| LN-CR-LUMU-6-TRD2 | 6W | Ø85 × H75/78 | 50 | — | — | 2700K – 6500K Tunable White | ≥95 | SUMLINK HCL (Bridgelux Vesta Thrive TW · CRI ≥95) |
| LN-CR-LUMU-9-TRD2 | 9W | Ø86 × H78 | 55 | 15°/24°/36°/55° | IP20 | 2700K – 6500K Tunable White | ≥95 | SUMLINK HCL (Bridgelux Vesta Thrive TW · CRI ≥95) |
| LN-CR-LUMU-11-TRD2 | 11W | Ø98 × H83 | 65 | 10°/15°/24°/36°/55° | IP20 | 2700K – 6500K Tunable White | ≥95 | SUMLINK HCL (Bridgelux Vesta Thrive TW · CRI ≥95) |
| LN-CR-LUMU-14-TRD2 | 14W | Ø108 × H109 | 75 | 15°/24°/38° | IP20 | 2700K – 6500K Tunable White | ≥95 | SUMLINK HCL (Bridgelux Vesta Thrive TW · CRI ≥95) |
| LN-CR-LUMU-22-TRD2 | 22W | Ø128 × H120 | 95 | 15°/24°/38°/60° | IP20 | 2700K – 6500K Tunable White | ≥95 | SUMLINK HCL (Bridgelux Vesta Thrive TW · CRI ≥95) |
| LN-CR-LUMU-25-TRD2 | 25W | Ø108 × H140 | 75 | 24°/38°/60° | IP20 | 2700K – 6500K Tunable White | ≥95 | SUMLINK HCL (Bridgelux Vesta Thrive TW · CRI ≥95) |
POWER
6W / 9W / 11W / 14W / 22W / 25W
FLUX
Per size — see size table (HCL engine, design target 131 lm/W)
CCT
2700K – 6500K Tunable White via Matter over Thread (LTECH Matter CC driver, HCL engine)
ENVELOPE
Ø85 – Ø128 mm, H75 – H140 mm; six sizes (see size table)
FINISH
Matt White / Matt Black (source factory housing)
Individual model dimensions, mounting type and per-SKU datasheets are issued on request while the model schedule is finalised.
Request the model schedule03 — Verification
Single source of truth. Nothing here is repeated elsewhere on the page.
05 — Resources
Send the room schedule — we return a BOM, driver and control topology, and the spec sheets for each SKU.