The new standard of light. Made in Germany.

VarioLED™ Flex Application Note

2,200 K

-

4,000 K622

532

4662,000 K

2,200 K

2,500

K

2,70

0 K

3,00

0 K

3,500

K

4,000 K

5,000 K

VarioLED™ FlexAs varied as your applications

Choose between different lumen packages, wattages, color temperatures, color renderings or step dimensions, the right lamp for your application. Brilliant and sharply drawn, contrasting colors can be reached by using our LED tapes with CRI > 95 (TM-30-15: Rf > 95, Rg ~ 100). The versions SLD (250 mm), LD (125 mm) and HD (62.5 mm) differ in cut lengths and component density (LD = Low Density, HD = High Density).

WHEN?• In the morning

•At midday

• In the evening

•At night

FOR WHAT?•General lighting

•Cove lighting

•Accent lighting

•Decoration lighting

•Wall washing

•Wall grazing

•Contour lighting

•Orientation lighting

•Task lighting

WhiteHYDRA SLD

Intended for soft ambient lighting and indirect view applications. Low light

output without the need for dimming.

HYDRA LDIntended for cove and accent lighting and other indirect view applications.

HYDRA HDIntended for direct view applications

with homogeneous output and the addition of a variety of lenses.

ATONIntended for applications requiring

a high brilliance and homogeneity of light such as retail and accent lighting.

ECOIntended for applications where cost savings

are desired, without significantly impacting quality and performance. Perfect for

decorative lighting applications in mill work, furniture and backlighting applications.

LED Linear™ GmbH

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2,200 K

-

4,000 K622

532

4662,000 K

2,200 K

2,500

K

2,70

0 K

3,00

0 K

3,500

K

4,000 K

5,000 K

Feeling of spaciousness and comfort through the intelligent combination of the color temperature from 2,200 K – 4,000 K near the Planckian curve. Suited for decorative to general lighting tasks.

Atmospheric lighting and color accents for decorative lighting, wall graze or wall wash applications. Stage your application in color.

IQ White

RGB

FOR WHOM?•Pupils, Students

•Senior citizens

•Hotel guests

•Employees

•Pedestrians

•Artists

•…

WHERE?•Outdoors

•Hospitality

• Industrial

•Office

•Educational institutions

•Residential

•Shop, Retail

•Architectural, Façade

•Art, Culture

•Spa, Wellness

•…

LED Linear™ GmbH

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VarioLED™ FlexPortfolio overview

Voltage (V) CRI

Lumen/W(lm/W)

Beam angle (°)

Watt/m (Watt/ft)

Lumen/m1, 2

(Lumen/ft1, 2)min. Length

mm (in)max. Length

m (ft)

VarioLED™ Flex HYDRA SLD3 White

HYDRA SLD3 24 85 163 120 2.9 (0.9) 470 (122) 250 (9.8) 10 (32.8)

VarioLED™ Flex HYDRA LD White

HYDRA LD5 24 95 144 120 4.8 (1.5) 690 (146) 125 (4.9) 7.5 (24.6)

HYDRA LD10 24 85 144 120 9.6 (2.9) 1,380 (360) 125 (4.9) 5 (16.4)

HYDRA LD15 24 85 144 120 15.4 (4.7) 2,210 (576) 125 (4.9) 4 (13.1)

HYDRA LD25 24 85 144 120 25 (7.6) 3,600 (936) 125 (4.9) 3 (9.8)

HYDRA LD40 24 85 108 120 40.3 (12.3) 4,350 (1,213) 125 (4.9) 2 (6.6)

VarioLED™ Flex HYDRA HD White

HYDRA HD6 24 95 144 120 5.8 (1.8) 830 (174) 62.5 (2.5) 5 (16.4)

HYDRA HD10 24 95 144 120 9.6 (2.9) 1,380 (290) 62.5 (2.5) 5 (16.4)

HYDRA HD15 24 85 144 120 15.4 (4.7) 2,210 (576) 62.5 (2.5) 4 (13.1)

HYDRA HD25 24 85 144 120 25 (7.6) 3,600 (936) 62.5 (2.5) 3 (9.8)

HYDRA HD36 24 85 144 120 36.5 (11.1) 5,260 (1,366) 62.5 (2.5) 2 (6.6)

VarioLED™ Flex ATON3 White

ATON3 24 82 95 120 9.6 (2.9) 910 (277) 62.5 (2.5) 5 (16.4)

VarioLED™ Flex ATON Air White

ATON Air 24 82 95 120 14.4 (4.4) 1,370 (418) 41.67 (1.6) 4 (13.1)

VarioLED™ Flex ECO LD White

ECO LD4 24 85 77 120 5 (1.5) 370 (113) 125 (4.9) 5 (16.4)

ECO LD12 24 85 78 120 12.5 (3.8) 970 (296) 125 (4.9) 4 (13.1)

VarioLED™ Flex ECO HD White

ECO HD8 24 85 78 120 7.7 (2.4) 600 (183) 62.5 (2.5) 5 (16.4)

ECO HD24 24 85 78 120 25 (7.6) 1,940 (591) 62.5 (2.5) 3 (9.8)

VarioLED™ Flex Side View ECO White LD

Side View ECO LD10 24 80 88 60 9.6 (2.9) 841 (256) 125 (4.9) 5 (16.4)

VarioLED™ Flex Side View ECO White HD

Side View ECO HD20 24 80 88 60 19.2 (5.9) 1,683 (513) 62.5 (2.5) 4 (13.1)

1 The luminous flux is related to 5,000 K. With warmer light colors the luminous flux is reduced (4,000 K: –5%; 3,500 K: –7%; 3,000 K: –12%; 2,700 K: –17%; 2,500 K: –40%; 2,200 K: -42%; 2,000 K: –44%; 2,000 K: –44%)

Ra/CRI > 90

Ra/CRI > 90

Ra/CRI > 90

LED Linear™ GmbH

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Voltage (V) CRI

Lumen/W(lm/W)

Beam angle (°)

Watt/m (Watt/ft)

Lumen/m1, 2

(Lumen/ft1, 2)min. Length

mm (in)max. Length

m (ft)

XOOMINESCENT™ T5HE 48 85 142 120 17 (5.2) 2,420 (738) 280 (11) 33.6 (110.2)

XOOMINESCENT™ T5HO 48 85 116 120 34 (10.4) 3,960 (1,207) 280 (11) 33.6 (110.2)

IQ White HYDRA LD25 24 85 120 120 25 (7.6) 3,010 (918) 250 (9.8) 3 (9.8)

VarioLED™ Flex IQ White ATON HD

IQ White ATON HD12 24 85 86 120 11.5 (3.5) 1,030 (314) 62,5 (2.5) 5 (16.4)

IQ White ATON HD24 24 85 89 120 23.8 (7.3) 2,130 (649) 62,5 (2.5) 4 (13.1)

IQ White ATON HD42 24 85 90 120 42.2 (12.9) 3,780 (1,152) 62,5 (2.5) 2 (6.6)

VarioLED™ Flex RGB LD

RGB LD15 24 – 45 120 15 (4.6) 672 (205) 125 (4.9) 4 (13.1)

VarioLED™ Flex RGB HD

RGB HD10 24 – 54 120 10 (3) 544 (166) 62,5 (2.5) 5 (16.4)

RGB HD20 24 – 51 120 22 (6.7) 1,016 (310) 62,5 (2.5) 4 (13.1)

VarioLED™ Flex ATON Color3

ATON R 24 – 22 165 8 (2.4) 174 (53) 125 (4.9) 7.5 (24.6)

ATON Y 24 – 13 165 8 (2.4) 104 (32) 125 (4.9) 7.5 (24.6)

VarioLED™ Flex ECO Color LD

ECO LD4 B 24 – 28 120 4 (1.2) 106 (32) 125 (4.9) 5 (16.4)

ECO LD4 G 24 – 110 120 4 (1.2) 418 (127) 125 (4.9) 5 (16.4)

VarioLED™ Flex ECO Color HD

ECO HD8 B 24 – 27 120 8 (2.4) 211 (64) 62,5 (2.5) 5 (16.4)

ECO HD8 G 24 – 109 120 8 (2.4) 835 (255) 62,5 (2.5) 5 (16.4)

3 Product discontinued at the end of 2016. Successor product in 2017 guaranteed!

We offer customer specified customized flexible LED-strips from a total length of 5,000 m upwards. Please ask us how we can assist you in the development of linear lighting solutions for your applications.

1 The luminous flux is related to 5,000 K. With warmer light colors the luminous flux is reduced (4,000 K: –5%; 3,500 K: –7%; 3,000 K: – 12%; 2,700 K: – 17%; 2,500 K: –40%; 2,200 K: 42%; 2,000 K: –44%; 2,000 K: –44%)2 For IQ White/RGB: The luminous flux was measured with all colors / channels at full power. Using single colors / channels reduces the luminous flux.

VarioLED™ Flex IQ White HYDRA LD

XOOMINESCENT™ White

LED Linear™ GmbH

5

VarioLED™ Flex enables new application fields through innovation and technology. Depending on the step length this linear LED lamp can be cut from the reel to the desired length in multiples of the step measurement. A reflective white surface ensures maximum reflection of light. A thermally enhanced 3M tape on the back ensures a reliable connection of the lamp on surfaces and profiles with superior heat management.

The 3 pillars of VarioLED™ Flex series:

•Japanese LED

•American standards

•German engineering

The VarioLED™ Flex convinces with up to 7,200 lm/m and 168 lm/W and a high color rendering up to CRI > 95 in IP00. Also available in IP67 and in aluminum profile. The small cross-section of 9.5 mm x 1.4 mm (W x H) allows the use in almost all applications with limited space. Due to the stud and screw less instal-lation, the VarioLED™ Flex product family is the alternative to rigid FR4 based Zhaga modules with superior thermal management.

VarioLED™ FlexFlexible light from the reel – for architecture and interior design

LED Linear™ GmbH

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Currently, VarioLED™ Flex is manufactured in Germany on the most modern assembly plant in Europe for reel to reel processing. Reel to reel means an unwinding of the flexible substrate at the process start and direct reeling of the finished product after cutting the equipped, soldered and tested product into the desired strips. This highly automated process allows the assembly of up to 45,000 components per hour, meeting the highest demands on the quality of VarioLED™ Flex series at the same time.

Advantages:

•High through put

•Capacity of up to 750 km LED tape annually

•Highly efficient due to 8 simultaneous processes

•Entire control of all production processes

•Batch traceability through QR-Information

•Delivery reliability

•Flexible substrates

•Customized products on request

VarioLED™ FlexEurope's state-of-the-art reel to reel assembly for flexible printed circuit boards

LED Linear™ GmbH

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VarioLED™ Flex HYDRAAll benefits at a glance

Brightness

Outstanding lumens per meter across all available light colors and color renderings.

Circuit board (Tj-Away®)

Optimized heat transfer from the LED to the support material by the linear, flexible printed circuit board with Tj-Away® technology (Thermal Junction Away).

Reflective Surface

The unique coating ensures a high quality reflection of the emitted light and protects the printed circuits.

LED Linear™ GmbH

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Customer assembly depending on step measurement

From the reel

VarioLED™ Flex is available in lengths from 2 m to 33 m and can be cut to the desired length depending on the step measurement.

LED

High quality Japanese LED packages selected for long lifetime, efficiency and outstanding light quality. Certain packages offer CRI up to 95 and R9 values up to 65.

CC driver

Uniform brightness from the first to the last LED guarantees a finely adjusted constant cur-rent regulator on each step. A uniform control of the LEDs ensures constant light output and has a positive effect on the lifetime.

OBO (One Bin Only)

Impressive color consistency with within 3-step MacAdam ellipses. The “One Bin Only” agreement guarantees consistency between applications and project phases.

Lifetime

• > 60,000 h @ L90 B10, for all VarioLED™ Flex HYDRA

• > 60,000 h @ L80 B10, for all VarioLED™ Flex (White)

•Super low density: SLD (250 mm / 9.84"), XOOMINESCENT (280 mm / 11.02")

•Low density: LD, ECO LD (125 mm / 4.92")

•High density: HD, ATON3, ECO HD (62.5 mm / 2.46")

•Super high density: ATON Air (41.67 mm / 1.64")

LED Linear™ GmbH

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CC – constant current regulator

Uniform brightness from the first to the last LED. The use of integrated circuit electronics (constant current regulator) on our circuit boards ensures a consistent and precise (± 0.5 mA) control of each LED. The constant direct current has a positive effect on the lifetime. The use of the constant current regulator mini-mizes voltage fluctuations in the lamp system.

LED (= Light Emitting Diode)

Japanese LEDs of the highest quality in 8 different color temperatures (2,000 K – 5,000 K) with strictly selected CIE bins within 3 step MacAdams Ellipse. For perfect brightness uniformity the LED forward voltage Vf and lumen flux Φ are carefully selected and adopted to the electrical circuit design. The natural emission spectra of the LED mimic the wavelength composition of the sun and ensures extraordinary color rendition capabilities (CRI 85 up to 95, TM-30-15: Rf > 95, Rg ~ 100). The LEDs have an integrated ESD protection, which protects the device against short-term surges and increases the lifetime.

Record breaking brightness

LED Linear offers the brightest CV-based flex tape portfolio on the market. Up to 5,300 lm/m @ W850 are unmatched in this area and thus even suitable for use in high-bay applications.

Flexible printed circuit board (Tj-Away®)

Heat management is in the focus during the whole development process of the flexible circuit board technology.

The Tj-Away® (Thermal Junction Away) – Technology is characterized by large copper areas below the LED, which ensure rapid heat dissipation and heat spread away from the LED.

Due to Tj-Away® we achieve thermal power densities less than 0.42 W/cm2 with our high performance tapes such as VarioLED™ Flex HYDRA LD40 with electrical input power of 40 W/m. The 30 m thin adhesive tape with superior heat conduction guarantees rapid heat transfer into aluminum profiles.

VarioLED™ FlexDescription of the components

Heat SlugFlexible printed circuit board

Chip Junction, Tj LED Chip

VarioLED™ Flex HYDRA LD40 (back side)

125

8,93 17,86 17,86 17,86 17,86 17,86 17,86

9,5

1,4 mm

5 W/11.88 cm2 = 0.42 W/cm2

61°C

57°C

52°C

47°C

42°C

37°C

32°C

27°C

LED Linear™ GmbH

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Initial color measuring tolerances of the LED

LED Manufacturers also perform primary measurements on their LEDs after production with a given tolerance. These measurements evaluate the initial color space within the CIE 1931 and the color variation range with respect to the CIE reference. LED Linear only uses the highest quality LEDs available on the market with a tight initial color space tolerance of CIE (x,y) = +/- 0.003.

One Bin Only and Color Consistency

One Bin Only stands for true color consistency within a 3 step MacAdams Ellipse located in the center ANSI bin. During the standardized LM80 test cycle time of 10,000 hours the maximum color shift Δu'v' is better than 0.001 (< 1 SDCM) which guarantees impressive color consistency. The absolute CIE (x,y) drift stays well within a 3 step MacAdams ellipse and cannot be recognized by the human eye.

16 ANSI binnings with 3 step MacAdams ellipsis and limits of the color shift (Δu'v') @ 2,700 K

Maximum anticipated Color Shift of the

reference LED @ 2,700 K

VarioLED™ FlexSuperior features and benefits

LED Color Initial Measuring Tolerance

CIE (x,y) = +/– 0.003 CIE (x,y) = +/– 0.005 CIE (x,y) = +/– 0.010

LED Linear™ Competitor A Competitor B

CCT Reported CCT Variation

2,200 K +/– 39 K +/– 96 K +/– 192 K

3,000 K +/– 56 K +/– 126 K +/– 252 K

4,000 K +/– 78 K +/– 164 K +/– 328 K

0.44

0.42

0.40

0.38

0.36

0.34

0.320.30 0.35 0.45 0.550.40 0.50

LED Linear™ GmbH

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The VarioLED™ Flex HYDRA series has a luminous flux of minimum 90% (L90) of the initial luminous flux within 60,000 h, with 10% (B10) of the LEDs can be lower and thus consequently 90% are above at specification based conditions.

> 60.000h @ L90 B10, for all VarioLED™ Flex HYDRA

> 60.000h @ L80 B10, for all VarioLED™ Flex (White)

Lifetime & Lifetime specifications

The luminous flux and the lifetime of LED products are exponentially proportional to the development of heat, for example the LED chip at the point where the light is generated. This place is commonly called Thermal-Junction (Tj). In the development of LED Linear™ products we pay particular attention to the fact that at an ambient temperature of Ta = 45°C, the temperature at the Junction Tj does not exceed = 95°C. This enables us to guarantee lifetimes of at least 60,000 hours with also a very low degradation of luminous flux. For this degradation there are parameters (Lx & By) which describe the changing lumi-nous flux over the operating time.

VarioLED™ FlexSuperior features & benefits

L90/B10> 60.000 h

L80/B10> 60.000 h

LED Linear™ GmbH

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VarioLED™ FlexConstant Voltage vs. Constant Current LED Drive

Characteristics

LED Drive Constant Voltage (12, 24, 48 VDC) Constant Current (mA)

Luminous Flux Stability Homogeneous brightness levels by constant current regulators on each module

Brightness stability depends on the used PSU and binning Uf

Modul length Variable, long module lengths possible Fix, short module lengths in SELV

SELV < 60 VDC Simply to ensure by CV LED Drive Uf cumulative, SELV area only within boundaries

Binning Uf LED Not critical due to CC driver architecture Very important, since the voltage in the system is variable

PSU Operation with CV PSUs. Changes in the module length have no influence

Operation with CC PSUs. Change of the module length needs to be adjusted in the driver

Costs Operation with CV PSUs. Changes in the module length have no influence

Lower costs, CC-drive are cheaper than CV drive through less components on the LED-module

Installation & Cabling Low wiring requirements due to larger module lengths Higher wiring effort due to fixed module lengths

Supply voltage Uin Constant Uin Variable Uin

Supply current Constant Iin (CC-Regulator) Constant Iin (PSU)

Lamp lengths Free scaleable Limited by Uf

System stability Stable Unstable, if Uf Binning is not homogeneous

Features

Benefits

Very stable lamp system Cheaper to produce, more costs efficient

Easy installation, length scalability Higher lamp efficiency

Egalisation of small changings in Binning Uf

Curcuit diagram

Constant Voltage (CV) Constant Current (CC)

Current RegulatorCV PSUGND

+UCV

Ι

RCC PSUGND

+UCC

Ι

LED Linear™ GmbH

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Cost savings

•Easy wiring of the LED tape in the luminaire

•Miniaturization of luminaires, smaller cross sections possible

•Easy mounting, no screws needed

•Can be cut at predefined points, making it field attachable and suitable for customer assembly

•Requires little space and reduces storage costs

The choice of the printed circuit board technology, whether rigid or flexible, is a fundamental choice in developing an LED lamp with respect to lifetime, light intensity, form factors, flexibility and function in the application.

VarioLED™ Flex(ible) Generic Rigid LED-Module (Zhaga)

Reliability, durability and thermals of the flexible PCB technology

•Outperforming reliability and less interface connections (solder joints, connectors, contact crimps, etc.)

•Exceptional thermal stability due to direct contact of the flexible printed circuit board with the heat sink. This allows the use of powerful LEDs and ensures high lifetime and reliability of the system.

•Optimum heat dissipation due to the direct connection to the heat sink.

•Lower LED Junction Temperature (Tj) ensures a long lifetime with minimal degradation effects (lumen degradation and color location shift)

•LED modules based on flexible printed circuit board technology achieve thermal advantage of 30% compared to rigid systems, such as FR4 based on Zhage boards

VarioLED™ FlexFlexible PCB versus rigid PCB LED light engines

LED-Junction Temperatur Tj < 65°C

72.0

63.2

54.3

45.5

36.7

LED-Junction Temperatur Tj > 95°C

41.0

115.0

88.9

62.8

36.7

LED Linear™ GmbH

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Photom. code CCT CRI R9 TM-30-15

Rf

TM-30-15 R

g

W930 3,000 K 96 70 91 101

In May 2015 the Illuminating Engineering Society proposed a new calculation method for the color rendering of LEDs. This new method is described in detail in the technical memorandum IES TM-30-15. This new method assesses the spectral power distribution (SPD) of white light sources near the Planck locus regarding the color fidelity, color discrimination and color preference. The TM-30-15 method utilizes 99 color evaluation samples (CES) – each represented by a spectral reflectance factor function – to quantify the difference in color rendition between the test source and reference source. This allows a much more differentiated assessment of the color rendering of a light source compared to the CRI method utilizing only 8 reference colors. The introduced Fidelity Index Rf and the Gamut Index Rg characterizing the light source will help our customers to specify our luminaires more easily for certain applications or for projects with given design rules.

The measurements of the spectral power distribution are conducted at 25 °C ambient temperature in the photometric laboratory of LED Linear™ using an absolute calibrated spectrometer BTS256-LED in the integrating Ulbricht sphere ISD-100HF-V01 (both Gigahertz Optik, Germany). The tested CRI 95+ and CRI 85+ LED types used for the HYDRA White products are tested with the following photometric codes: W927, W930, W935, W940, W820, W822, W825, W827, W830, W835, W830, W850. This report is based on calculations processed with the IES TM-30-15 Advanced Calculation Tool (version 1.01 as of 2015-10-02), provided by the Illuminating Engineering Society (IES).

VarioLED™ FlexIES TM-30-15 reports for white LED-strips

Example W930/3,000 K

LED Linear™ GmbH

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