Effect of LED Light on Circadian Rhythm

Impact of LED Light on Circadian Rhythm

Light plays a crucial role in regulating circadian rhythms, which govern the internal biological processes of humans. These rhythms affect sleep-wake cycles, work efficiency, well-being, and even health. In recent years, LED technology has gained popularity in homes, offices, and public spaces. So how does LED light affect our circadian rhythms?

Circadian Rhythm and Its Importance

The circadian rhythm is an internal biological clock that lasts about 24 hours and is mainly controlled by light. The appropriate intensity and color temperature of light can synchronize these rhythms, which is essential for the proper functioning of the body. Changes in light exposure can lead to sleep disturbances, fatigue, and decreased performance.

Characteristics of LED Light

LED light is characterized by high energy efficiency, long lifespan, and the ability to adjust the color temperature. LEDs can emit light in various color temperatures, from warm white to cool blue light. These properties make LEDs ideal for supporting natural circadian rhythms.

Impact of LED Light on Circadian Rhythm

1. Regulation of sleep-wake cycle:

   • Cool light (high color temperature): Emitted in the morning and during the day, it stimulates alertness and activity, helping the body maintain high concentration and productivity.
   • Warm light (low color temperature): Emitted in the evening, it promotes relaxation and prepares the body for sleep, supporting natural melatonin production.

2. Impact on mental health:

   • Appropriate lighting can improve mood and reduce symptoms of seasonal affective disorder (SAD). LED light with the right color temperature can be used in light therapy.

3. Impact on work efficiency:

   • In offices, proper LED lighting can increase productivity and improve employee concentration. Adjusting the color temperature to the time of day helps maintain circadian rhythms, leading to better work results.

Human Centric Lighting (HCL) Technology

Human Centric Lighting (HCL) is advanced technology that uses LED light to support circadian rhythms. By automatically adjusting the color temperature throughout the day, HCL can improve the quality of life and health of users.

Application Example: DayEmity RDS Controller

The DayEmity RDS controller by CEZOS is an excellent example of an HCL device. It automatically adjusts the color temperature of LED light throughout the day, synchronizing with users' natural circadian rhythms. As a result, users can enjoy better sleep quality, improved mood, and increased productivity at work.

LED light has a significant impact on human circadian rhythms. By appropriately adjusting the color temperature of light, we can support our internal biological clocks, leading to better health, well-being, and efficiency. Human Centric Lighting technology, such as the DayEmity RDS controller, offers innovative solutions that can significantly improve the quality of life for users.

Experimenting with different LED light settings and observing their impact on our daily functioning can provide valuable insights into how best to utilize this technology in our lives.

Technology and Features of the DayEmity RDS Controller

The DayEmity RDS controller is an advanced device designed to work with constant voltage tunable white LED light sources. With automatic time synchronization via RDS signal, this controller dynamically adjusts the color temperature of the light throughout the day, supporting users' natural circadian rhythms.

Technical Specifications

• Article number: LWDAYERDSJ497-2X10A-CVD2W
• Dimensions: 665x275x155 mm
• Output type: Constant Voltage (CV)
• Control interface: Automatic circadian rhythm program
• Recommended CCT for LEDs: 2700K and 6500K
• Time calibration: RDS (Radio Data System)
• Operating voltage: 11 - 26 V DC
• Number of channels: 2
• Maximum output current: 10 A / channel
• Maximum total output power: 240 W
• Ambient temperature: 0 - 50°C

Key Features and Benefits

• Automatic color temperature adjustment: The controller adjusts the light to the time of day, supporting natural circadian rhythms. Warm light in the evening promotes relaxation, while cool light in the morning stimulates activity.
• Warm-up function: After turning on, the controller slowly increases the color temperature, ensuring a gentle transition to proper daylight lighting.
• Low power consumption and high efficiency: The controller features low energy consumption, leading to savings and a reduced environmental impact.
• Automatic time synchronization via RDS: With automatic synchronization, the controller precisely adjusts the lighting to real-time conditions.

Controller Applications

The DayEmity RDS controller is widely applicable in various types of lighting, including:

• Office lighting: Improving concentration and work efficiency.
• Home lighting: Enhancing comfort and quality of life.
• Floor lamps: Easy adjustment of lighting in home conditions.

Installation and Safety

Connecting the Controller

Before connecting the controller to LED light sources, ensure the power supply has the appropriate parameters to power all connected devices. When connecting the controller to the LED light source and power supply, remember to connect the devices according to their polarity to avoid damage. The wires between the power supply, controller, and LED modules should be as short as possible.

Wire Requirements

• Wire diameter: Should be selected according to the load and in accordance with current standards.
• Solid wire: 30-12 AWG / 0.05-3.31 mm²
• Stranded wire: 30-12 AWG / 0.05-3.31 mm²
• Wire strip length: 6 mm
• Screw: M2.5

Cooling

The controller generates heat depending on the load, so ensure adequate cooling if the housing temperature exceeds 50°C. Measure the temperature at the center of the housing. Improper use of the controller can lead to damage or overheating.