Leviton DHD05-1LW Dual Humidity Sensor & Light Switch – 1/4 HP

Overview

The Leviton DHD05-1LW Decora combination device combines a humidity-sensing exhaust fan control with a separate light switch in a single wall box. Designed for bathrooms, basements, laundry rooms, and other moisture-prone spaces, it helps automate ventilation while keeping lighting convenient and independent. The slim, white unit fits most standard wallboxes, and the design supports installations with or without a neutral wire, enabling flexible retrofits or new installations without unnecessary wiring changes.

Key benefits at a glance

• Automatic humidity responsiveness: the fan can activate when moisture levels rise, helping to manage humidity without nonstop manual intervention.
• Independent lighting control: a dedicated light switch allows vanity lighting, shower lighting, or task lighting to be controlled separately from the fan.
• Retrofit-friendly design: a slim profile fits in most wallboxes, making it suitable for many existing installations.
• Neutral-wire optional: you can install it with or without a neutral wire, depending on your wiring setup.
• Code-conscious performance: designed to support compliance with modern indoor air quality and energy standards in many regions.
• Color-customizable finish: the unit pairs with the DHDKT color-change kit to suit different décor styles.

Product details and load specifications

• Fan Load (Blue Wire): 1/4 HP; supports up to 300W LED/CFL, 600W incandescent/halogen, 400 VA MLV/ELV.
• Light Load (Red Wire): up to 150W LED/CFL, 250W incandescent/halogen; 200 VA MLV, 250 VA ELV; 2A resistive.

Installation and compatibility

• Can be installed with or without a neutral wire; ground connection required for safe operation.
• Ideal for spaces where a single combo device saves wall space and reduces clutter.
• Wallplate sold separately; finish options include white, ivory, light almond, gray, black, and brown with the color-change kit.

Use cases and real-world scenarios

Imagine a compact bathroom where the light and fan are controlled from a single location, while humidity triggers improved airflow after showering. In basements or laundry nooks, the sensor helps maintain comfort by reducing moisture buildup, and the separate light switch keeps lighting tasks straightforward. The device’s slim profile and flexible wiring options make it a practical choice for both new builds and upgrades to older homes.

Compliance and design notes

This model is designed to align with contemporary indoor air quality and energy standards in many regions. It offers a clean white finish that blends with most decors, and the option to swap colors via the color-change kit provides additional styling flexibility. While it offers automated benefits, manual control remains available for immediate ventilation or lighting needs.