Circadian-friendly controls and power management for outdoor - - PowerPoint PPT Presentation

Circadian-friendly controls and power management for outdoor luminaires

Controlling the light for better living

There is often less need to have fully lit streets and other outdoor environments late in the evening and during the night. But switching off lights can make people feel unsafe. With the aid of lighting control, major energy savings can be made without the need to switch off lights completely and create a sense of insecurity. The various systems we use for lighting control outdoors are integrated into each luminaire’s electrical ballast and take care of themselves. Nor is there any need for external accessories to make the lighting control work. The control units are pre-programmed and maintenance-free. The systems we are talking about have many different names in the industry. We choose to call it what it is – the Astro DIM. Luminaires with Astro DIM also require no additional investments in or modifications to infrastructure.

23 h 18 h 19 h 20 h 21 h 22 h 24 h 16 h 13 h 14 h 15 h 17 h 1 h 2 h 3 h 4 h 5 h 6 h 7 h 8 h 9 h 10 h 11 h 12 h

100% power 4000K CCT

WINTER & SUMMER EXAMPLE

75% power 3000K CCT 50% power 2000K CCT 75% power 3000K CCT 100% power 4000K CCT 100% power 4000K CCT 75% power 3000K CCT 50% power 2000K CCT 75% power 3000K CCT

CW OUT WW OUT DC IN

Wire connection Push-In Wire removal by pushing PCB terminal release latch Mount with plastic strap

• r double-sided tape and

place terminals correctly to the side or downwards for water trap prevenition

circaLED

IP20

0.2 ~ 0.75 6 - 7mm

Input voltage: Input current: Output voltage: Output current: Ambient temperature: Power dissipation: Stand-by power: DC 24 - 48V 1.25A DC 20 - 40V 0 - 1.05A

• 25 ~ +50°C

<2.5W <0.5W

Autonomous Dynamic CCT Autonomous Astro DIM Constant light output Adjustable output current Consumption and temperature logging NFC contact-less programming Very low output ripple current

circaLED

Dual output dimmable & tunable white driver for the circadian-friendly outdoor luminaires

Featuring:

Astro DIM - program sequences

Astro DIM is a feature performing a dimming sequences and up to 5 pre-programmed levels based on the virtual midnight value. The virtual midnight value is calculated based on the average duration between the time the lighting fixture is turned on (sunset) and turned

• ff (dawn). This allows to create the reference point for the device,
• ften called as “natural midnight”.

The luminaire does not have a real-time clock. Instead, it runs a virtual one, determined by the length of nightly operating hours. After 2 ON-OFF cycles, the driver will calculate the virtual clock time. A valid ON- time is defined as a period during which the driver operates continuously. After repeating the luminaire ON- time for 2 consecutive nights, the DIM profile takes effect from the 3rd day onwards. A valid ON-time is defined as a period during which the driver operates continuously for ≥4 hours to ≤24 hours.

With an increasing focus on the human and nature well-being, outdoor spaces have to be lit correctly considering the color spectrum. Usually the LED chip manufacturers refer to the CCT (Correlated colour temperature) as a major value to determine the color of the light source. An LED luminaire can be equipped with both Natural White LEDs (4000K) and Amber LEDs (2000K) to mix and shift the energy to lesser the „nightly unnatural“ Blue component of the spectrum. Dynamic CCT feature is operating based on the Astro DIM principle, where the power and the CCT can be set for user-defined times.

Dynamic CCT - tunable white for outdoors

Traditional light sources suffer from depreciation in light output over

• time. This applies to LED light sources as well. The CLO feature

enables LED solutions to deliver a constant lumen output throughout the life of the LED module. Based on the type of LEDs used, heat sinking and driver output current, a correction of the lumen depreciation can be entered. The luminaire then counts the number of operating hours and will correct the output current based on this input. CircaLED CLO is programmable up to 10 years and 75%-90% initial power.

Constant Light Output (CLO)

NFC interface and Android OS

CircaLED is programmable with an Android application specifically made to meet the requirements for manufacturing, maintenance and the end user. Feature-rich application offers to set up a variety of parameters including dimming, output current, CCT, CLO, and all related features. Including bonus effects suitable for testing or exhibitions. The application requires the smartphone with NFC enabled interface in order to use it correctly. NFC programming can be done on a manufacturing line without the need to apply mains voltage to the driver. It is faster than traditional methods of LED driver programming, more feature-rich and flexible than resistor-setting techniques, and has a reduced training requirements for the production-line staff. NFC is standardized under ISO/IEC 15963 and accepted by MD-SIG consortium for LED power supply management.

Min. Max. Unit; Description Voltage 24 48 V; DC from Constant Voltage PS Current 1.25 A Voltage range 20 40 V; DC Current range 1.05 A; per output or sum of outputs Dissipation 2.5 W Stand-by 0.5 W Ambient temperature

• 25

+50

• C

Storage temperature +60

• C; max. RH 90%, ABS UL94HB

Dimensions mm; LxWxH Wire terminals 20AWG (0.50) 18AWG (0.75) mm²; Wire-to-board, Push In Design lifetime h; No elyt capacitors Data retention Years 49.8 Input 100 000 Environment Output 115x63x12 Physical Protection Other Open output protection, short circuit protection, over temperature protection, input overvoltage short-term protection, Power

Technical specifications:

LED PS 48V/1.25A Constant voltage CircaLED DC/DC module LED PS 48V/3.75A Constant voltage CircaLED DC/DC module CircaLED DC/DC module CircaLED DC/DC module

Block diagram for single CircaLED module connection Block diagram for parallel CircaLED modules connection

HIGH CCT 36V LED LOW CCT 36V LED HIGH CCT 36V LED LOW CCT 36V LED HIGH CCT 36V LED LOW CCT 36V LED HIGH CCT 36V LED LOW CCT 36V LED

Use higher CCT only to prolong daytime. Make nighttime healthier and more pleasant experience with low CCT.

After dusk Before dawn Nighttime

CCT t