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SuperLightingLED
SUPERLIGHTINGLED CO., LTD
Web: www.superlightingled.com
Email: [email protected]
Date: 2026-11-03 | ID: 3950

4PIN M18 Transparent Waterproof Male And Female Plug Terminal Connector

MODEL: 4PIN-M18-WTC
Price based on selections below:
$2.48
AvailabilityIn Stock
ConditionBrand New
Technical Specifications

Ensure a robust and weather-sealed connection for your lighting projects with the 4PIN M18 Transparent Waterproof Terminal Connector. This male and female plug set is engineered for durability and ease of use, featuring a secure screw-terminal block that eliminates the need for soldering. Its transparent housing allows for quick visual inspection of connections, while the M18 threaded locking ring creates a tight, waterproof seal perfect for outdoor or demanding environments.

Specifically designed for 4-conductor wires, this connector is the ideal solution for joining segments of RGB LED strips or other low-voltage AC/DC devices. Unlike pre-wired pigtails, this terminal block connector provides the flexibility to use your own custom-length wiring, making it a versatile choice for both professional installers and DIY enthusiasts seeking a reliable, field-serviceable connection. It is one of the essential 4-Pin RGB LED Strips Parts for any serious installation.

Key Features

IP68 Waterproof Rating

Provides complete protection against dust ingress and long-term water immersion, making it ideal for outdoor and marine use.

Secure Terminal Block

Features screw-down terminals for a reliable, solder-free connection, allowing for easy field installation and maintenance.

Transparent Housing

The clear PVC body enables instant visual confirmation of correct wire seating and polarity, preventing installation errors.

4-Pin Configuration

Perfectly matches the wiring requirements for standard 4-wire RGB LED strips and other multi-channel low-voltage applications.

M18 Locking Thread

A robust M18 threaded coupling ring ensures the male and female plugs lock together tightly for a secure, vibration-resistant fit.

Durable Materials

Constructed with high-conductivity copper contacts and a tough PVC insulator for reliable performance and longevity.

Technical Highlights

  • Designed for High-Frequency AC/DC Circuits
  • Robust Screw-Locking Mechanism
  • Corrosion-Resistant Copper Contacts
4PIN M18 Transparent Waterproof Male And Female Plug Terminal Connector - photo 1
4-Pin M18 transparent waterproof male and female terminal connector set.

Product Specifications

ParameterDetails
Model4PIN-M18-WTC
Product TypeWaterproof Terminal Connector
Connector SizeM18
GenderMale + Female Pair
Pin Count4
IP RatingIP68
Termination StyleScrew Terminal Block
Housing MaterialTransparent PVC
Contact MaterialCopper
ShapeRound
Total Length (Each Side)Approx. 160 mm
Interface TypeAC/DC
Working FrequencyHigh Frequency

Application Scenarios

Outdoor RGB LED Strip Lighting Create seamless, weather-resistant connections for landscape lighting, deck accents, patio illumination, and architectural features using waterproof RGB LED strips. The terminal block design simplifies outdoor wiring.
Marine & Automotive Wiring Establish dependable, water-tight 4-wire connections on boats, RVs, trailers, and off-road vehicles. Ideal for custom lighting, sensors, or auxiliary power circuits exposed to moisture and vibration.
Industrial & Wash-Down Areas Perfect for connecting sensors, actuators, or low-voltage lighting on machinery in food processing plants, manufacturing facilities, or other environments that require regular cleaning and are exposed to dust and liquids.
Custom Low-Voltage Projects A versatile and robust light connector plug for any DIY electronics project needing a secure, disconnectable 4-pin connection that can be assembled in the field without special tools.

How to Use This M18 Terminal Connector

  1. Ensure all power is disconnected before starting.
  2. Unscrew the rear cable gland nut from the connector housing.
  3. Strip approximately 5-7mm of insulation from the ends of your four conductor wires.
  4. Using a small screwdriver, loosen the four internal terminal screws.
  5. Insert each bare wire into its corresponding terminal slot. Observe the correct order for your application (e.g., +12V, G, R, B).
  6. Firmly tighten each terminal screw to secure the wire. Gently tug each wire to confirm a solid connection.
  7. Slide the cable gland nut back over the cable and tighten it onto the connector housing to create a waterproof seal.
  8. Repeat for the other connector half.
  9. To connect, align the male and female plugs and push them together, then tighten the M18 locking ring until snug.
⚠ Precautions
  • Verify the voltage and current ratings of your wiring are sufficient for your LED lights or device.
  • Always double-check your wiring polarity and sequence before reconnecting power to prevent damage.
  • Do not over-tighten the terminal screws, as this can damage the wire strands.
  • For IP68 protection, ensure both the rear cable gland and the main locking ring are fully tightened.

What's in the Box

  • ✓1 x 4-Pin M18 Waterproof Male Terminal Connector
  • ✓1 x 4-Pin M18 Waterproof Female Terminal Connector

Frequently Asked Questions

Q: What is the main advantage of a terminal block connector over a standard pigtail?

A:A terminal block connector allows you to attach your own wires directly without soldering or splicing, offering greater flexibility in cable length and easier field repairs.

Q: Is this 4-pin connector compatible with RGB LED strips?

A:Yes, its 4-pin configuration is the industry standard for connecting 12V or 24V RGB LED strips, which have conductors for Red, Green, Blue, and a common positive.

Q: What does the 'M18' in the name signify?

A:M18 refers to the metric thread size of the connector's coupling nut, which is approximately 18mm in diameter. This ensures a secure, standardized fit.

Q: Can I use this connector for an underwater lighting project?

A:With its IP68 rating, this connector is designed to be submersible, making it suitable for underwater applications like pool or fountain lighting, provided all seals are properly tightened.

Q: What tools are required to install this connector?

A:You will need a wire stripper to prepare your cable and a small Phillips or flat-head screwdriver to tighten the internal terminal screws.

Q: Why is the transparent housing a useful feature?

A:The clear body allows you to visually inspect the wire connections after installation, confirming that each wire is fully seated and secured in the correct terminal.

© 2026 SuperLightingLED. All specifications are subject to change without notice.