Shelly BLU Wall Switch 4 Shelly BLU Wall Switch 4 light switch Plastic Ivory

Shelly BLU Wall Switch 4 is a Bluetooth smart four-button light switch in an ivory plastic housing (46 × 46 × 13 mm) that can be mounted in a compatible wall frame or used as a standalone portable device. It runs on a CR2032 battery and is compatible with frames from Shelly, Legrand, Gira, Merten and Busch-Jaeger. The switch supports customizable multi-click actions for controlling lights, appliances or scenes and is intended for straightforward integration into modern smart home setups.

Advantages

The Shelly BLU Wall Switch 4 provides quick Bluetooth response, up to 16 configurable actions using different click combinations and a long battery life of up to two years. Adapter sets allow installation into existing switch frames for a seamless look, while the standalone option makes the device portable and easy to place anywhere without permanent wiring. The compact plastic ivory housing is designed to fit standard frame openings (46 × 46 × 13 mm) and operate on a CR2032 battery.

Suitable for

• Controlling room lighting in apartments or houses
• Triggering smart home scenes and automation
• Operating small appliances via Bluetooth integrations
• Use as a portable control device where permanent installation is not desired

Key specifications

• Brand: Shelly
• Model / MPN: Shelly_B_A_WS_4_B
• EAN: 3800235266946
• Dimensions: 46 × 46 × 13 mm
• Housing material and color: Plastic, ivory
• Power source: CR2032 battery
• Connectivity: Bluetooth
• Buttons: 4 (multi-click support, up to 16 actions)

How to use

For wall mounting, fit the switch into a compatible frame using the provided adapter set and secure it according to the frame manufacturer’s instructions. For standalone use, insert a CR2032 battery into the switch and place it where convenient. Pair the device with your Bluetooth controller or Shelly app (if required) and assign actions to each button using single, double or multiple click combinations to set up lighting, appliance control or scenes.

Recommendations

Install the switch in a dry indoor location and use compatible brand frames (Shelly, Legrand, Gira, Merten, Busch-Jaeger) for a flush fit when wall-mounting. Replace the CR2032 battery as needed and reconfigure button actions after battery replacement. For reliable Bluetooth performance, keep the paired controller within typical Bluetooth range and avoid heavy interference from large metal objects or other wireless devices.