Leviton DT104-1LW Countdown Timer Switch | 30 Min–4 Hour, No Neutral, 15A, Decora

Control lights, fans, and more with timed precision

Leviton’s Countdown Timer Switch DT104-1LW replaces a standard wall switch to automate power for interior lighting, ventilation fans, and heat- or spa-related devices. With preset options of 30 minutes, 1 hour, 2 hours, and 4 hours plus a manual off, you can tailor cycles to everyday routines, outdoor gatherings, or late-night winding-down moments. It works with your existing wiring and does not require a neutral wire for many installations, making a DIY upgrade practical and straightforward. The slim depth aids installation in tight wall boxes, and interchangeable line/load terminals help prevent miswiring during setup.

Simple, wire-friendly installation

• Works with existing wiring while offering a slim profile that fits most standard wall boxes
• Interchangeable line and load terminals reduce the chance of incorrect wiring
• Green Flex Sleeve connects to a ground wire, or to a neutral wire when the sleeve is removed, offering wiring flexibility
• Decora-compatible look that blends with other Decora devices and wallplates

Decor-friendly and customizable options

• Appearance complements interior and exterior spaces; DTKIT faceplates let you refresh color to white, ivory, light almond, gray, black, or brown
• Ideal for porch and landscape lighting, interior lights, ventilation fans, heat lamps, hot tubs, saunas, attic fans, and more
• Do not use to control lights if it is the only light source in the area

Key specifications at a glance

• Ratings: 600W LED/CFL; 1800W incandescent/halogen; 1200VA Magnetic Low Voltage/Electronic Low Voltage/Fluorescent
• Electrical: ½ HP / 9.8A fan or motor; 15A resistive
• Installation: Single pole; easy DIY wiring with a slim depth

Usage ideas and real-world benefits

Use the timer to automate porch lighting for welcoming outdoor space, or to cycle interior lights and ventilation fans after activity or sleep times. Preset options enable predictable behavior without constant manual control, while the ability to pair with Decora wallplates keeps a consistent room aesthetic.

Note: This switch is designed to add programmable control and convenience; it does not guarantee specific energy savings and results may vary by usage patterns.