Introduction
This manual provides detailed instructions for the safe and efficient use of your DEWENWILS Outdoor Mechanical Light Timer, Model TM-080. This device is designed to automate the on/off cycles of outdoor lighting and other electrical appliances, offering convenience and energy management. Please read this manual thoroughly before installation and operation.

Image: Two DEWENWILS Outdoor Mechanical Light Timers, showing the timer dial, manual switch, and two grounded outlets on each unit.
Safety Information
WARNING: To reduce the risk of fire or electric shock, carefully follow these instructions.
- This timer is rated for 125V, 60Hz, 15A Max, 1875W Resistive or General Purpose, 1/2HP. Do not exceed these ratings.
- The product is UL Listed, ensuring compliance with safety standards.
- Always ensure the timer is securely plugged into a grounded outlet.
- Do not immerse the timer in water or other liquids.
- Ensure the protective cover is properly closed when used outdoors to shield against weather conditions.
- For outdoor installation, mount the timer at least 2 feet off the ground vertically to prevent water accumulation.
- Disconnect power before servicing or cleaning.
- Keep children away from the timer.
- Do not use with extension cords that are not rated for outdoor use or do not have proper grounding.

Image: The DEWENWILS timer installed outdoors during winter, demonstrating its weather-resistant design. Note the recommendation to mount 2 feet off the ground.

Image: Visual representation of the timer's overload protection feature, highlighting its maximum capacity of 1875W, 15 Amps, and 125 Volts.
Product Overview
The DEWENWILS Outdoor Mechanical Light Timer (Model TM-080) is a robust device designed for reliable outdoor use.
Key Features:
- 24-Hour Programmable Cycle: Allows for daily repeat settings with 30-minute intervals, offering 48 setting options within a 24-hour period.
- Outdoor Durability: Features a protective cover against weather conditions and is constructed with heavy-duty materials and an SJTW 14-3 grounded cord.
- Dual Grounded Outlets: Equipped with two grounded outlets that can be controlled simultaneously.
- Manual Override Switch: A switch to select between TIMER mode and continuous ON mode.
- UL Listed: Certified for safety and quality standards.
Components:
- Timer Dial: The central rotating dial with numbers representing hours (1-12 AM/PM).
- Setting Pins: Small, push-down/pull-up pins around the timer dial for setting ON/OFF intervals. Each pin represents 30 minutes.
- Manual Override Switch: Located below the timer dial, typically labeled "TIMER" and "ON".
- Grounded Outlets: Two 3-prong outlets for connecting devices.
- Protective Cover: A clear, hinged cover to protect the dial and switch from elements.
- Power Cord: Integrated SJTW 14-3 grounded power cord.
Setup Instructions
Follow these steps to set up your DEWENWILS mechanical timer.
- Prepare the Timer: Ensure all pins around the timer dial are in the UP position before starting. Each pin represents a 30-minute interval.
- Set Current Time: Rotate the timer dial clockwise until the current time aligns with the "TIME" arrow indicator. The dial is marked for 24 hours (1-12 AM and 1-12 PM).
- Program ON/OFF Times:
- To set an "ON" period, push down the pins corresponding to the desired ON duration. For example, to turn on from 6:00 PM to 10:00 PM, push down the pins from 6 PM to 10 PM.
- To set an "OFF" period, leave the pins in the UP position for the desired OFF duration.
- The minimum interval for programming is 30 minutes (one pin).
- Set Manual Override Switch: Locate the switch below the timer dial. Slide it to the "TIMER" position for automatic operation based on your programmed settings. If you want the connected devices to remain continuously on, slide the switch to "ON".
- Plug In: Plug the timer into a grounded outdoor electrical outlet. Then, plug your outdoor lights or appliances into the timer's grounded outlets.

Image: A hand demonstrating how to push down the pins on the timer dial to set the "ON" periods. The image also illustrates that each pin represents a 30-minute interval.

Image: A four-step visual guide showing the process of setting the timer: 1. Pull all pins up. 2. Rotate dial to current time. 3. Push down ON pins. 4. Set switch to TIMER mode and plug in.
Operating Instructions
Once the timer is set up, its operation is straightforward.
Timer Mode:
When the manual override switch is set to "TIMER", the connected devices will turn ON and OFF according to the pins you have pushed down on the dial. The timer dial will continuously rotate, completing a full cycle every 24 hours.

Image: Diagram illustrating the 24-hour daily cycle of the timer, indicating how a single setting repeats each day.
ON Mode:
If you slide the manual override switch to "ON", the timer will bypass the programmed settings, and the connected devices will remain continuously powered. This is useful for situations where you need constant power, such as for a water fountain.

Image: Close-up of the timer showing the manual override switch with "TIMER" and "ON" positions, alongside examples of usage for each mode (timer for lights, ON for a fountain).
Maintenance
The DEWENWILS Outdoor Mechanical Light Timer requires minimal maintenance.
- Cleaning: Disconnect the timer from the power source before cleaning. Wipe the exterior with a damp cloth. Do not use harsh chemicals or abrasive cleaners. Ensure the protective cover is clean and free of debris to maintain visibility of the dial.
- Inspection: Periodically inspect the power cord and plug for any signs of damage. If damage is found, discontinue use and replace the unit.
- Storage: If storing the timer for an extended period, ensure it is clean and dry. Store in a cool, dry place away from direct sunlight.
Troubleshooting
If you encounter issues with your timer, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Timer does not turn ON/OFF at programmed times. |
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| Connected device does not receive power. |
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| Timer dial is not rotating. |
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Specifications
| Specification | Value |
|---|---|
| Model Number | TM-080 |
| Brand | DEWENWILS |
| Operation Mode | Automatic |
| Current Rating | 15 Amps |
| Operating Voltage | 125 Volts (AC) |
| Wattage | 1875 Watts Max |
| Horsepower | 1/2 HP |
| Contact Type | Normally Open |
| Connector Type | 2 Pin (Grounded) |
| Terminal | Quick-connect |
| Circuit Type | Parallel |
| Contact Material | Copper |
| Item Dimensions (L x W x H) | 4 x 4 x 6 inches |
| Item Weight | 1.23 pounds |
| Color | Black |
| Certifications | UL Listed |
Warranty and Support
For warranty information or technical support, please contact DEWENWILS customer service. Refer to the product packaging or the official DEWENWILS website for the most current contact details.
DEWENWILS Customer Service:
- Website: www.dewenwils.com (Note: This is a placeholder link, please verify the actual support website.)
- Email: Refer to product packaging
- Phone: Refer to product packaging







