Hello, everyone, pls pay attention! There's some good news to announce!

Our new connector product has been successfully developed! Our metal assembly series products(L20) are now officially available for purchase!

This is an AOHUA metal circular waterproof connector, L20 Type Connector an industrial-grade electrical connection component primarily used for cable termination in outdoor/harsh environments. Below is a detailed analysis:

1. Product Type and Core Features

• Type: Circular aviation plug-style waterproof connector (assembly type), with the diagram illustrating the combined structure of "plug + socket + cable".
• Waterproof Rating: Typically achieves IP67/IP68 (dustproof and immersion-resistant), suitable for outdoor, industrial equipment, LED lighting and similar applications.
• Core Functionality: Enables rapid cable interconnection + sealed protection, preventing water/dust ingress that could cause short circuits or malfunctions.

• Metal plug/socket: Silver-coloured metal casing (typically stainless steel or alloy) featuring a threaded locking mechanism (ensuring a secure connection), with gold-plated pins inside (for excellent conductivity).
• Cable end assembly: Black plastic waterproof sheath + multi-core coloured cable (with visible yellow, red, blue and other cores), some fitted with retaining clips (to prevent cable pulling).
  
• Accessories: Dust cover (protects unmated sockets), panel mounting bracket (for securing to equipment casing).

3. Application Scenarios

These connectors are primarily used in:

• Cable connections for outdoor LED street lighting and landscape illumination;
• Signal/power transmission for industrial equipment and sensors;
• Electrical systems in humid/vibratory environments such as marine vessels, motor vehicles, and livestock farming.

Below is a checklist of key selection criteria for standard circular waterproof connectors, covering core parameters such as pin count, voltage/current ratings, and protection ratings. Combined with scenario-based compatibility logic, this facilitates rapid matching to requirements:

III. Mechanical Structure Selection (Compatibility, Installation and Usage Methods)

IV. Compliance and Additional Requirements Selection (Ensuring Security and Compatibility)

V. Prioritising Model Selection (Avoiding Pitfalls)

• First determine the application scenario (outdoor / industrial / marine, etc.) → establish the required protection rating and environmental resistance parameters;
• Next, match the electrical requirements (number of cores, current/voltage) → to prevent transmission overload or signal instability;
• Then confirm the installation method(panel-mounted/wire-to-wire) to suit the equipment structure
• Finally, add compliance and special features (certification, flame retardancy, anti-misinsertion) → to ensure safety and compatibility.

Quick Selection Guide for Common Scenarios (Direct Application)

5.The pricing of metal circular waterproof connectors is primarily influenced by the following categories of factors:

1. The material and craftsmanship of the product itself

• Material: The stainless steel casing (corrosion-resistant but costly) is more expensive than standard alloys; gold/silver-plated contact pins (superior conductivity and oxidation resistance) are pricier than tin-plated copper; fluororubber waterproof seals (high/low temperature tolerance) are costlier than conventional rubber.
• Processing: Complex techniques such as precision threading, surface electroplating (corrosion protection), and sealed structural design contribute to increased costs.

2. Specifications and Performance Requirements

• Number of cores: 8-core is more expensive than 4-core (due to more complex materials and construction).
• Protection rating: IP68 (suitable for prolonged immersion) is more expensive than IP67 (suitable for short-term immersion).
• Special properties: Customised features such as high-temperature resistance (e.g. 150°C), high-pressure resistance, and vibration/shock resistance will increase the price.

3. Brand and Quality Certification

• International brands (such as TE, Amphenol) or well-known domestic brands (such as Aohua) command higher prices than smaller manufacturers due to significant investments in research and development and quality control.
• Products requiring certifications such as ISO, UL, or RoHS (e.g., for medical or aerospace applications) are more expensive owing to the substantial testing costs involved.

4. Procurement and Market Factors

• Procurement volume:Bulk purchases (e.g., 1,000 units) command a significantly lower unit price than small batches (e.g., 10 units).
• Customisation requirements: Customised variants with non-standard dimensions or functionalities command several times the price of standard models due to the substantial costs associated with tooling and development.
• Supply and demand relationship: Prices may fluctuate when raw materials (copper, stainless steel) experience price increases or supply chain shortages.

5. Application Scenarios

• Industrial/outdoor applications (requiring high protection) are more expensive than standard indoor scenarios;
• Connectors for extreme environments such as military or aviation use may cost over ten times the price of standard models.