Tunable White CCT COB LED Strip Dimmable 2700K-6500K For Hotel Engineering

Technical Specifications

Seamless CCT Transition: From 3000K to 6000K

The Tunable White CCT series houses 608 dual-row COB chips per metre — a warm-white row and a cool-white row — blended by a dedicated controller to produce an absolutely seamless color temperature sweep from 2700K to 6500K. Unlike discrete dual-color strips that show a hard midpoint, the COB phosphor architecture mixes the two channels optically before the light reaches the emitting surface, so the transition is smooth at every step: a 3000K cosy glow for evening suites, a 4000K crisp daylight for bathrooms, a 6000K bright work light for dressing areas. This is human-centric lighting at architectural scale — supporting circadian rhythm, guest comfort and hotel brand standards from a single continuous light line.

Industrial-Grade Material: Double-Sided 2oz Copper

At 22W/m, thermal management is not optional — it is the difference between a strip that lasts a decade and one that degrades within a season. The CCT series is built on a professional double-sided 2oz (35um) copper PCB: the double-sided copper doubles the conductive cross-section, halving resistive losses at the higher 22W load and keeping voltage drop negligible across long runs. The copper also acts as a continuous lateral heat spreader, distributing the thermal load of 608 chips evenly so junction temperatures stay controlled even inside enclosed hotel coves and ceiling channels. For specifiers, this industrial-grade substrate is the guarantee of stable output, consistent CCT and the full 50,000-hour design life in demanding hospitality environments.

Luxury Architectural Applications

Engineered for five-star hospitality, the Tunable White CCT strip elevates every space it enters. In hotel suites, a continuous run behind the headboard cove shifts from warm 3000K in the evening to bright 6000K for grooming — one strip, every scenario. In lobbies and corridors, the strip provides uniform architectural lines that adjust with the circadian cycle, supporting guest wellbeing while reinforcing the property's design language. In bathrooms and dressing rooms, the high CRI at every CCT setting renders skin tones and fabrics accurately. For premium residential projects, the same series delivers cinematic tunable lighting in living areas, kitchens and media rooms, controlled by standard tunable-white controllers, smart hubs and DALI systems.

Professional Engineering Installation

The CCT strip uses a 3-wire connection — positive (V+), warm channel (W+) and cool channel (C+) — which is the industry standard for tunable white control. (1) Cut at the marked 13mm (DC12V) or 26.3mm (DC24V) points. (2) Terminate the three solder pads or clamp connectors; polarity is clearly marked. (3) Connect to a matching tunable-white controller (PWM, 0-10V, DALI or RF remote) before the power supply. (4) Size the driver at 1.2x total wattage (metres x 22W/m) — a 10m installation requires a 264W certified constant-voltage supply. (5) Feed from both ends for runs above 6m at DC24V to maintain CCT and brightness uniformity. (6) Mount onto an aluminium profile for heat sinking; IP65/IP67 encapsulated versions are available for damp areas.

Advanced Technical FAQ

1. What is the exact LED density of the CCT series?

608 LEDs/m arranged in dual COB rows — 304 warm-white and 304 cool-white chips per metre — enabling full-range CCT mixing from a single light line.

2. What power does the strip consume?

22W/m at full brightness with both channels at 100%. Partial CCT positions draw proportionally less — for example, 3000K-only operation consumes roughly half the rated wattage.

3. How does CCT mixing work in a COB strip?

The warm and cool rows are independently driven via the 3-wire connection. The controller blends their duty cycles, and the COB phosphor layer optically integrates the two colors before emission, eliminating any visible midpoint.

4. Which controllers are compatible?

Standard tunable-white PWM controllers (RF remote, wall panel, app), 0-10V CCT drivers, DALI DT8 tunable-white drivers, and smart hubs supporting CCT scenes. Confirm controller voltage matches the strip voltage.

5. How do I calculate voltage drop for long runs?

Voltage drop = 2 x length x current x resistance per metre. For the 10mm 2oz copper PCB at 22W/m (24V: ~0.92A/m), keep single feeds under 6m and add a second feed at the far end beyond that; at 12V keep runs under 3m.

6. How do different IP ratings affect the strip?

IP20 is bare for dry interior channels. IP65 silicone extrusion adds moisture protection but reduces output by ~8% and increases bend radius; IP67 fully potted versions suit exposed damp areas. Choose the rating per installation zone.

7. What CCT tolerance is maintained across batches?

Warm and cool chips are separately binned (MacAdam 3-step available). Batch tests hold CCT within ±50K per channel at the same bin code, so multi-reel installations match seamlessly at any CCT setpoint.

8. Is the CRI consistent across the CCT range?

CRI > 90 at all CCT setpoints, with 95-grade options. High-CRI warm chips render skin and wood tones accurately at 2700-3000K, which is critical for hospitality interiors.

9. What are the cutting rules?

Cutting Unit is 13mm for DC12V and 26.3mm for DC24V, with cutting marks clearly indicated on the strip. Cut only at marked points; offcuts remain functional with matched 3-pad termination.

10. How should I size the power supply?

Total wattage = metres x 22W/m x 1.2 headroom. A 12m run at full brightness needs a 317W certified constant-voltage driver (use two 160W feeds for reliability).

11. Does the strip support dimming independent of CCT?

Yes. The controller independently adjusts brightness (0-100%) and CCT, so you can dim a 6000K scene without shifting its color temperature.

12. Why is the 2oz double-sided copper critical at 22W?

The double-sided 2oz copper halves conductor resistance, reducing heat generation and voltage drop at the higher current — keeping the 608-chip strip thermally stable inside enclosed coves.

13. Can the strip be used outdoors or in wet areas?

Indoor IP20 is for dry interiors. For bathrooms, spas and external canopies, order IP65 (silicone) or IP67 (potted) versions; note the slight output reduction and larger bend radius.

14. What is the minimum bend radius?

Approximately 30mm for the 10mm PCB. For sharp corners, cut at a marked point and join with a 3-wire corner connector.

15. How does the strip behave in mirror and glass applications?

The 608 LEDs/m COB construction reads as a continuous dot-free line in mirror reflections and glass shelves at any CCT — ideal for hotel vanity mirrors and display cases.

16. What is the expected lifespan?

50,000 hours (L70) at rated voltage with profile mounting. The 2oz copper and controlled junction temperature preserve CCT consistency and output over the strip's life.

17. What accessories are required for installation?

A tunable-white controller, matching constant-voltage driver, 3-pin connectors, aluminium profile with diffuser, end caps and power feed cables with polarity marking.

18. Can I integrate with building management systems?

Yes. DALI DT8 and 0-10V versions integrate directly with BMS and hotel room management systems, enabling scene-based CCT schedules per room or floor.

19. What is the minimum order quantity for wholesale?

Standard MOQ is 50 reels (500m) with sample reels dispatched within 24-48 hours. Hotel-project bulk orders and staging deliveries can be arranged.

20. What OEM options are available for hospitality brands?

Custom CCT ranges, brand-labelled spools and packaging, custom connectors, matched-bin multi-reel programs and project-specific technical documentation.

21. How do I maintain consistent CCT across a large hotel floor?

Order all reels at the same bin code, request batch test reports, and use matched-bin supply for multi-room programs. Calibrate controllers with the same firmware for uniform scene output.

22. Why choose LEDLetsGo for tunable white projects?

In-house COB manufacturing, dual-channel binning, batch testing, flexible MOQ and hotel-project engineering support make LEDLetsGo a complete partner for hospitality lighting programs worldwide.

Engineering Notes: The Architecture of Tunable Light

The CCT series is a study in controlled color: 608 dual-row chips per metre, optically blended through the COB phosphor layer; 22W/m of power delivered on a double-sided 2oz copper spine that keeps every chip at its design temperature; and a 3-wire architecture that separates brightness from color temperature, giving specifiers independent control over both. The 13mm (DC12V) and 26.3mm (DC24V) cutting units align with hotel cove geometry, and the IP20/IP65/IP67 family covers every installation zone from dry coves to wet spas. For hospitality engineers, this is tunable white engineered to the same standard as the architecture it illuminates.

23. How do I verify CCT accuracy on site?

Use a handheld CCT meter at the same height and angle across several points of the installed run, comparing against the controller setpoint. With matched-bin reels, readings should stay within ±100K across the full length; larger deviations indicate a wiring or controller calibration issue.

24. What happens if I reverse the warm and cool channels?

Reversing W+ and C+ inverts the CCT mapping — the controller will report the opposite color temperature. Terminate carefully by polarity; most controllers also allow a channel-swap configuration to correct wiring errors without rewiring.

Specification Compliance Note

All specifications are verified against production batch reports available on request: luminous flux, warm/cool channel CCT, CRI, power draw and continuity per reel. Electrical characteristics are measured at 25°C ambient with the strip mounted on an aluminium profile; derate power by approximately 5% for enclosed wood coves and 10% for IP67 encapsulated versions.