You're absolutely right. The "plug-in" timer solution is not a safe or code-compliant way to control outdoor lighting permanently installed with EMT conduit. Here's a breakdown of why, and some better alternatives

Why the Plug-In Timer is a Bad Idea:
Code Violation

Using extension cords and plug-in devices for permanent outdoor lighting is almost certainly a violation of the National Electrical Code (NEC).

Weather Exposure

The timer and cord are not designed for outdoor weather, leading to corrosion, potential shorts, and fire hazards.

Safety Hazard

Exposed cords are trip hazards and can be damaged by lawn equipment, animals, or even just foot traffic.

Aesthetics

It's not a professional or visually appealing solution.

Better Timer Solutions for Outdoor Lighting

Here are some methods for adding a timer to your outdoor garage lights, considering the homeowner's preference for digital timers and your need for a compliant, durable installation:1.

In-Wall Digital Timer Switch



Description

A digital timer switch replaces the existing light switch that controls the garage lights. It's wired directly into the electrical box, offering a clean and permanent installation.

Pros

Clean, professional look. Easy programming (many models). No extra boxes or exposed wiring. Often have features like sunrise/sunset scheduling and manual override.

Cons

Requires access to the existing switch box. You need to ensure the switch is rated for the total wattage of both lights. Requires some electrical wiring skill.

Considerations

Get a switch specifically rated for outdoor lighting or wet locations. Choose a model that has features that meet the owner's needs (astronomical timing, multiple on/off events, etc.).2.

Timer Relay Description

A timer relay can be installed inside a junction box in your wiring and would control a relay that provides power to your lights. The timer relay can be programmed to your specifications and would not require any user interaction, thus eliminating the need for a switch at all.

Pros

The ability to have multiple schedules set, ie: all night Friday & Saturday and on only until midnight the rest of the week. Hidden from users.

Cons

More difficult wiring set up. Costs a bit more.3.

Photocell with Digital Timer Override



Description

A photocell automatically turns the lights on at dusk and off at dawn. You can add a digital timer to override the photocell during specific times (e.g., turning the lights off at 11 PM even if it's still dark).

Pros

Energy-efficient (lights only on when needed). Automatic operation with override capability.

Cons

Photocell can be affected by surrounding light sources. Requires both a photocell and a timer.

Considerations

Install the photocell in a location that is not directly illuminated by other lights.4.

Smart Outdoor Plug (with Limitations)



Description

Some "smart" outdoor plugs are designed for outdoor use. These are typically weather-resistant (but read the specs carefully!). They connect to Wi-Fi and can be controlled by an app, allowing for very flexible scheduling.

Pros

Very flexible scheduling. Remote control (via app). Often integrate with other smart home systems.

Cons

Relies on a stable Wi-Fi connection. You still need to have a properly installed outdoor-rated receptacle to plug into. This doesn't eliminate the need for proper wiring in EMT conduit to the receptacle. Not a truly "permanent" installation compared to the in-wall timer. Higher potential for failure due to the electronics.

Considerations



ONLY use a smart plug that is specifically rated for outdoor use (UL listed for wet locations). Ensure the total wattage of the lights does not exceed the plug's rating.

Important Steps and Safety


Turn off the power at the circuit breaker before working on any electrical wiring.2. Verify that the circuit is de-energized with a non-contact voltage tester.3. Consult local electrical codes. Your installation must comply with all local regulations.4. Use appropriate wiring methods and materials for outdoor applications (weatherproof boxes, connectors, etc.).5. If you are not comfortable working with electrical wiring, hire a qualified electrician. It's always better to be safe than sorry.

Recommendation

Given the owner's preference for digital timers, the

in-wall digital timer switch is likely the best solution for a clean, reliable, and code-compliant installation. It offers flexibility in scheduling and avoids the issues with exposed cords and plug-in timers. However, make sure it is rated for wet locations.Before proceeding, discuss all options with the homeowner, highlighting the pros and cons of each. Let them make an informed decision based on their preferences and budget. Flag for review