Vexen TWILO TWS-10AB Twilight Sensor, 1P, 10A, 230V, 1800W

The Vexen TWILO TWS-10AB is a high-performance twilight sensor designed for the automated management of lighting systems based on real-time ambient light levels. This 1P photo relay ensures that outdoor or indoor lighting is activated precisely when natural light drops below a user-defined threshold, promoting significant energy savings and operational convenience. With a robust construction and a wide sensitivity range, it serves as a reliable solution for maintaining safety and visibility in various environments.

Advantages

The primary benefit of this twilight sensor is its ability to optimize energy consumption by ensuring lights are only active during periods of insufficient natural illumination. The device offers a flexible sensitivity threshold ranging from 3 to 500 lux, allowing users to calibrate the activation point according to specific environmental conditions or personal preferences. Its IP54 protection rating ensures durability against dust and splashing water, making it suitable for outdoor installation. Furthermore, the inclusion of adjustable time settings provides additional control over the operational cycle of connected lighting fixtures.

Suitable for

• Street and pathway lighting systems
• Garden and landscape illumination
• Building facade lighting
• Parking lot and driveway security lights
• Automatic control of signage or decorative lighting

When it may not be suitable

This sensor is not intended for use in environments where light levels fluctuate rapidly due to artificial sources, as this may cause the device to cycle on and off frequently. It is also not suitable for high-voltage industrial applications exceeding its 1800W load capacity or for installation in areas where the sensor cannot be exposed to natural ambient light.

Key specifications

• Voltage: 230 V
• Maximum current: 10 A
• Maximum load: 1800 W
• Sensitivity threshold: 3 - 500 lux
• Protection rating: IP54
• Mounting type: Surface
• Number of functions: 9

How to use

The device is designed for surface mounting. Once installed, the sensitivity is adjusted using the LUX knob; turning it counterclockwise toward the 3 position restricts activation to very dark conditions, while turning it clockwise toward 500 allows activation in brighter ambient light. The TIME setting allows the user to define the specific operational duration for the photocell. Ensure the sensor is positioned where it can detect natural daylight without being obstructed by shadows or directly influenced by the light it controls.

What to consider before purchase

• Verify that the total wattage of your lighting system does not exceed 1800W.
• Ensure the mounting location allows the sensor to receive natural light.
• Check that the surface mounting area is protected from direct, heavy water jets despite the IP54 rating.
• Confirm that the power supply is stable at 230V.

For optimal performance, avoid placing the sensor in a location where it will be illuminated by the light source it is controlling, as this will cause the system to cycle continuously.