Tunable White COB LED
Tunable White is a Hailux Lighting LED technology that provides the ability to control the ‘daylight’ (3000K to 6000K) color temperature of a LED luminaire.
Hailux Lighting’s TW-209 is a dual-section chip-on-board (COB) LED comprised of two separate LED strings. The TW-209’s light output is a blend of string one and string two resulting in a combined COB. Color temperature ranging from approximately 3,000K (warm white) to approximately 6,000K (cool white).
Using a Tunable White COB LED, a single luminaire can adust it’s light output to match the natural changes in daylight color throughout the course of a day. This is a desired quality in office, healthcare, retail and education environments which can improve productivity, attentiveness, and the ambiance.
The color temperature is adjusted by varying the power ratio between the two LED strings. This operation requires a variable CCT Controller ( part# TCC-100), external 100K potentiometers and a dimmable constant current power supply. [See block diagram on page 6]
Features
- Color temperature range 3000K to 6000K
- Dual, controllable, LED strings
- Adjustable simulated daylight.
- Efficacy, typically 100 Lumens/Watt at full brightness
- Full beam angle 120o (compatible with 3rd party reflectors)
- 20 to 22 Watts for optimum performance
Absolute Maximum Ratings
| Description | Symbol | Rating | Unit |
|---|---|---|---|
| Power Dissipation (Note 1) | P | 25 | Watts |
| Forward Current | I-f | 750 | mA |
| Reverse Voltage | V-r | 60 | V |
| Operating Temperature | T-oper | 75 | Deg C |
| Storage Temperature | T-stg | 100 | Deg C |
| Case Temperature | T-C | 75 | Deg C |
Note 1: Absolute maximum power dissipation and forward current are for the sum of both LED strings, for best performance, power should be limited to 20-22 watts.
Note 2: Operating temperature as measured at point on the COB marked “TC”.Performance Specifications
| Conditions | Parameter | Limits | ||
|---|---|---|---|---|
| (TJ=25) | Min | Typ | Max | |
| Forward Current, 750Ma | Forward Voltage | 32 | 36 | 40 |
| Warm-White LED String | CCT | 2700K | ||
| Cool-White LED String | CCT | 2400K | ||
| Efficacy | Lumens/Watt | 2200K | ||
Performance Specifications, Dual CCT Controller (Purchased Seperately)
| Conditions | Parameter | Limits | ||
|---|---|---|---|---|
| (TJ=25) | Min | Typ | Max | |
| Operating Current Per String | Ampere | 2.0 | ||
| Controller Operating PWM Frequency | kHz | 1.0 | ||
| Duty Cycle Per LED String As CCT Adjusted | 5% | 95% | ||
| Max. Constant Current Dead-Time In A Full PWM Cycle | 1.0% | |||
Block Diagram
Assembly Instructions
*Hailux Lighting recommends the use of Ledil Brooke Series reflectors [Models #12352 (18°), #12083 (34°) and #12084 (47°)] for mechanical compatibility with the 2 x M3 screw installation.
Assembly Instructions Without A Reflector
- Step 1: Prepare the heatsink with two threaded M3 holes, 24mm apart
- Step 2: Temporarily locate the alignment board with the two M3 screws. (Do not tighten)
- Step 3: Apply Thermal Interface Material
- Step 4: Place the COB inside the alignment board and tighten the screws clamping both the COB and alignment board.
Assembly Instructions With A Reflector
Complete Steps 1 through 4, then remove the screws and washers, assemble the reflector reusing the 4-40UNC screws and washers.
