1. Product Overview

This module is a 12V DC adjustable Delay OFF timer relay designed for automotive lighting and general-purpose 12V automation systems.

The module activates a connected load immediately after receiving a trigger signal and continues supplying power to the output for a preset time before automatically switching OFF.

Unlike traditional dry-contact relay modules, this version provides a direct 12V output, making installation faster and easier for automotive lighting applications.

Typical Applications

• Delayed headlight shutdown
• Follow-me-home lighting systems
• Interior light delay
• Auxiliary automotive lighting
• LED strip control
• Car accessories with delayed shutdown
• Cooling fan delay control
• 12V automation systems

2. Technical Specifications

3. Wire Identification

4. Wiring Instructions

Power Supply Connection

Red Wire

Connect to:

• Constant +12V battery supply

Important:

• Install a 20A fuse between battery positive and module input

Black Wire

Connect to:

• Vehicle ground / battery negative terminal

5. Output Connection

White Wire — Positive Output

Provides delayed +12V output to the connected load when the timer is active.

Connect to:

• Positive terminal of the lamp, LED strip, relay, or other 12V device

Blue Wire — Negative Output

Provides output ground connection.

Connect to:

• Negative terminal of the load

The module directly supplies power to the connected device, eliminating the need for additional relay wiring in many applications.

6. Trigger Input Connection

Positive Trigger Activation

Orange Wire

Connect to:

• +12V trigger signal
• Ignition switch
• ACC output
• Light switch
• Control switch

Operation

When +12V is applied:

• Timer activates immediately
• White wire outputs +12V
• Connected load powers ON

When trigger voltage is removed:

• Delay countdown begins
• Output remains active during countdown
• Output switches OFF automatically after preset delay

Negative Trigger Activation

Brown Wire

Connect to:

• Negative trigger signal
• Switched ground signal

Used in vehicles or systems where activation occurs through ground switching instead of positive voltage switching.

7. Operating Principle

1. Module receives constant 12V power
2. Module remains in standby mode
3. Trigger signal activates timer
4. White output wire provides +12V output
5. Connected load powers ON
6. Trigger signal is removed
7. Delay timer starts counting
8. Output remains active during countdown
9. After preset time expires, output switches OFF automatically

8. Delay Time Adjustment

The module includes an onboard potentiometer for delay adjustment.

Adjustment Direction

• Clockwise rotation → decreases delay time
• Counterclockwise rotation → increases delay time

Adjustment Range

• Minimum: approximately 1 second
• Maximum: approximately 360 seconds

Fine adjustment allows precise timing customization for different automotive and automation applications.

9. Benefits

• Simple installation with direct 12V output
• No additional external relay required for most applications
• Supports both positive and negative trigger signals
• Wide adjustable delay range
• Compact size for hidden installations
• High current capability up to 20A
• Suitable for automotive and general 12V systems
• Reliable delayed shutdown operation
• Ideal for follow-me-home lighting systems
• Low standby power consumption
• Easy wiring with color-coded leads

10. Automotive Example Application

Delayed Headlight Shutdown

Example Connection

• Red wire → battery +12V through 20A fuse
• Black wire → vehicle ground
• Orange wire → ignition or headlight signal
• White wire → headlight positive input
• Blue wire → headlight ground

Operation

When ignition or headlights are turned ON:

• Module activates immediately
• Headlights receive power

When ignition or headlights are turned OFF:

• Timer countdown begins
• Headlights remain ON temporarily
• Power disconnects automatically after configured delay

Typical Use

• Follow-me-home lighting systems
• Delayed interior lighting
• Automatic accessory shutdown

11. Safety Information

• Use only with 12V DC systems
• Never exceed 20A load current
• Use external high-current relay for larger loads
• Verify wiring polarity before powering module
• Disconnect battery during installation
• Protect module from water and excessive heat
• Insulate all wiring connections properly
• Install appropriate fuse protection near power source

All items will undergo thorough inspection before packing to ensure they are of high quality. The item will be shipped within 1 business day upon receipt of payment, excluding weekends and public holidays. We offer worldwide shipping via A1 Post. The estimated delivery times are approximately:

• 7-14 business days to the UK
• 7-14 business days to Germany
• 10-24 business days to the Australia/Canada
• 10-15 business days to USA
• 5-14 business days to Europe
• 14-24 business days worldwide

Please note that these are approximate delivery times, and actual delivery may vary depending on the destination and other factors. Thank you for your understanding.

We provide a 30-day warranty for the exchange of defective, malfunctioning, incorrect, or parts-missing items. If you encounter any issues with your item, please contact us directly, and we will promptly find the right solution for you. This approach will expedite the resolution process. We are committed to assisting you throughout the entire process. Kindly refrain from initiating a return request through eBay, as it may adversely affect our business. Thank you for your understanding and cooperation!

Your satisfaction is our top priority, and we strive to provide you with the best possible experience. We would greatly appreciate it if you could take a moment to leave us positive feedback, sharing your experience with our items. Your feedback is invaluable and contributes to the growth of our business.

In the event of any challenges or concerns with your order, we kindly request that you contact us before leaving neutral or negative feedback. We are open to hearing your ideas and advice, as we are committed to addressing any issues and ensuring your satisfaction.

We are a company based in Bulgaria with 10 years of experience in designing and manufacturing electronic kits, timers, thermostats and many other devices. Our company has been dedicated to designing and manufacturing high-quality electronics. With over 10 years of experience in this field, we have gained a deep understanding of the needs and preferences of our customers, and we pride ourselves in providing our customers with fast, reliable and safe shipping for their purchases. Whether you're looking for a car timer or a thermostat to manage your heating and cooling, we have the expertise and technology to provide you with the perfect product and solution for your needs. Choose our company for quality electronics and devices, backed by a decade of experience and a commitment to customer satisfaction!