The Cooper Wiring Devices 7738W‑K‑L is a premium-grade combination switch and LED nightlight designed to deliver reliable performance, enhanced safety, and modern convenience for both residential and commercial environments. Engineered with a fully integrated photo‑sensor nightlight, this device provides automatic illumination in low‑light conditions, helping guide users through dark hallways, stairways, bedrooms, and bathrooms.

With its durable thermoplastic construction, long‑life LED lighting, and easy installation via both back and side wiring, the 7738W‑K‑L is an ideal upgrade from standard switches—adding both functionality and safety without increasing wall space. The nightlight features variable brightness, preset dimming memory, and a selectable guide‑light mode, making it far more versatile than typical built‑in light switches.

Whether you are renovating, enhancing accessibility, or adding safe walkway illumination, this combination device is built to last, meets modern UL safety requirements, and provides a sleek decorator-style appearance suited for any interior.

Key Features

• Single‑pole 15A / 120V AC switch integrated with an LED nightlight for combined control and illumination
• Auto‑on / auto‑off photo sensor activates the nightlight in low‑ambient‑light settings and turns it off when adequate light is detected
• Fully dimmable LED nightlight with adjustable brightness and memory‑retention of the user’s preset level
• Guide Light Mode allows the nightlight to stay on regardless of ambient lighting levels, ideal for continuous way‑finding illumination
• Energy‑efficient LED uses only about 1 watt and is rated for 50,000 hours of lamp life for long‑term reliability
• Durable thermoplastic construction designed to be virtually unbreakable for long‑life performance in high‑traffic environments
• Back and side wire terminals for #10–#14 AWG solid or stranded wire, ensuring compatibility with standard residential wiring methods
• Automatic grounding system removes the need for bonding jumpers in grounded metal enclosures (additional grounding redundancy included)
• Decorator‑style design for modern aesthetics and streamlined appearance
• LED light lens control allows press‑and‑hold dimming and quick on/off operation for user‑friendly adjustment
• Low energy consumption ideal for continuous illumination with minimal power impact

Specifications

Electrical

• Voltage: 120V AC
• Amperage: 15A single‑pole switch
• Nightlight Wattage: Approx. 1W LED load
• Switch Type: Rocker-style single‑pole control

Lighting

• Nightlight Type: Integrated LED
• LED Lifespan: Rated for 50,000 hours
• Brightness Adjustment: Multi‑level dimming with preset retention
• Operational Modes:
  • Dimmable Nightlight Mode (auto light sensor)
  • Guide Light Mode (always‑on function)

Construction & Materials

• Housing Material: Thermoplastic backbody and face for high durability
• Mounting: Standard decorator wall‑box installation
• Wiring: Back and side wire terminals for #10–#14 AWG
• Operating Temperature: ‑20°C to 60°C range for versatile installation conditions

Certifications & Compliance

• Safety Listing: UL (U.S. and Canada) certified
• Application Grade: Residential / Commercial

Applications

The Cooper 7738W‑K‑L combination nightlight switch is ideal for settings where safety, convenience, and low‑light navigation are priorities. Common uses include:

• Hallways and Corridors: Provides gentle illumination for late‑night movement without turning on overhead lighting.
• Bedrooms: Useful for children, guests, or individuals needing low‑light visibility at night.
• Bathrooms: Enables safe navigation without harsh lighting during nighttime use.
• Stairways and Landings: Reduces trip risks by automatically activating when surrounding areas darken.
• Assisted Living Facilities: Enhances safety and accessibility for elderly or visually impaired users.
• Dormitories, Hotels, and Guest Spaces: Adds comfort and convenience for guests unfamiliar with room layouts.