Why OEM Buyers Choose ECKO for Encapsulated Outdoor Transformer Projects
Application-Based Engineering
We review the load type, duty cycle, cable distance, ambient temperature, installation zone and target safety requirements before finalizing the transformer. This helps avoid incorrect VA selection, excessive temperature rise and unstable output voltage.
Electrical and Mechanical Design in One Project
The transformer winding, magnetic core, enclosure, resin, cable gland and mounting structure are developed as one complete assembly. This is especially important when IP protection and thermal performance must be achieved at the same time.
Controlled Design Documentation
Input, output, wire size, protection components, dimensions, cable pinout and label information are recorded in the approved drawing. Engineering changes can therefore be reviewed and controlled before they enter production.
Waterproofing Beyond an Outer Coating
A reliable waterproof design depends on the resin, housing, cable jacket, cable entry, strain relief, curing process and installation method. ECKO evaluates these details instead of relying only on an external waterproof label.
Prototype and Production Capability
Established in 2000, ECKO operates three workshops covering approximately 5,000 square metres with 150 skilled workers and annual capacity of around one million wound-component products Prototype lead time can be as fast as 1–3 days when the required materials are available.
Technical Support from Sample to Mass Production
Customers can confirm electrical performance, dimensions, cable assembly, label and installation fit with a prototype before production. Inspection requirements and project-specific test reports can be agreed during sample approval.
Quality Testing
Waterproof Transformer Inspection and Validation
Routine electrical tests and design-validation tests serve different purposes. The final test limits and inspection frequency should be recorded in the approved specification or Control Plan.
| Test Item |
Purpose |
Recommended Frequency |
| Visual and Dimensional Inspection |
Confirms housing, label, cable, mounting and workmanship |
100% |
| Winding Continuity |
Detects open circuits and incorrect connections |
100% |
| Turns Ratio / No-Load Voltage |
Confirms input-to-output voltage ratio |
100% |
| No-Load Current |
Checks magnetic design and assembly consistency |
Routine or agreed sampling |
| Winding Resistance |
Verifies winding consistency and conductor condition |
Routine or agreed sampling |
| Hi-Pot Test |
Verifies dielectric isolation between windings and accessible parts |
100% when included in the approved Control Plan |
| Insulation Resistance |
Checks insulation condition and moisture-related leakage |
Routine or agreed sampling |
| Ground Continuity |
Confirms protective earth connection on applicable metal housings |
100% where applicable |
| Load Voltage Test |
Confirms output voltage under the specified load |
Sample and lot verification |
| Temperature-Rise Test |
Validates thermal performance at rated load and ambient condition |
Design validation or type test |
| Thermal Protector Test |
Confirms the selected protector and trip requirements |
Component and sample verification |
| IP / Water-Ingress Test |
Validates the complete enclosure and cable-entry design |
Type test or project-defined sampling |
| Potting and Curing Inspection |
Checks resin fill, surface condition and curing consistency |
Visual inspection plus batch control |
| Final Functional Test |
Confirms correct wiring, polarity and operating performance |
100% or agreed Control Plan |
Quality Statement:
Every shipment follows the approved product specification. Test records, inspection reports or project-specific validation data can be discussed during the quotation and sample-approval stage.
From Application Requirements to Production-Ready Outdoor Waterproof Transformer
Step 1 — Application Review
Send the input voltage, output voltage, rated current, load type, cable distance, ambient temperature, IP requirement and installation information.
Step 2 — Engineering Evaluation
ECKO evaluates transformer capacity, winding design, voltage regulation, temperature rise, insulation, protection components, enclosure and cable assembly.
Step 3 — Quotation and Drawing
You receive a commercial quotation together with the proposed electrical and mechanical specification. Key parameters are confirmed before prototype production.
Step 4 — Prototype Manufacturing
A custom sample is manufactured using the agreed materials and construction. Sample lead time can be as fast as 1–3 days for suitable projects with available materials.
Step 5 — Sample Verification
The customer checks electrical performance, dimensions, mounting, cable connections and operation with the actual equipment. Any required changes are reviewed before approval.
Step 6 — Pilot Run and Mass Production
After sample approval, production follows the confirmed drawing, materials and inspection requirements. A pilot quantity can be arranged when additional validation is required.
Step 7 — Final Inspection and Delivery
Finished products are inspected and packed according to the agreed specification. Carton, pallet, private-label packaging and export documentation can be customized.
Low Voltage Outdoor Lighting Transformer FAQ
1. Can the transformer operate at both 50Hz and 60Hz?
A low voltage outdoor lighting transformer can be designed for 50/60Hz operation. However, the transformer must be engineered for the intended input voltage and frequency to prevent excessive temperature rise, vibration or reduced efficiency.
2. Why is the measured output voltage higher when no lights are connected?
A slightly higher no-load voltage is normal for traditional transformers. Once the lighting load is connected, the output voltage usually decreases toward its rated value. ECKO can optimize voltage regulation according to the actual load and cable length.
3. Can the transformer provide multiple voltage taps?
Multiple output taps such as 12V, 13V, 14V or 15V AC can be customized. Higher-voltage taps can help compensate for voltage drop in long landscape lighting cable runs, but the voltage measured at each fixture must remain within its permitted range.
4. Is it normal for an outdoor lighting transformer to become warm?
A moderate temperature rise during operation is normal because electrical energy produces heat in the winding and magnetic core. Excessive heating may indicate overloading, poor ventilation, incorrect input voltage, short circuits or an unsuitable installation environment.
5. Why does a low voltage lighting transformer make a humming sound?
A slight hum may be caused by normal magnetic vibration inside the transformer. Excessive noise can result from loose core laminations, overvoltage, waveform distortion, overloading or incorrect mounting. ECKO can optimize the core structure, impregnation and assembly to reduce operating noise.
6. Can one transformer control several lighting zones?
Yes. A transformer can be designed with multiple output circuits for different lighting zones. Each circuit should have appropriate capacity and protection. Separate timers, relays or smart controllers may be added when independent zone control is required.
7. Can the transformer operate continuously for 24 hours?
Provided it is designed for continuous duty, correctly loaded and installed with suitable heat dissipation. For long-term operation, the transformer should not exceed its rated power, voltage, temperature and environmental limits.
8. Can the transformer withstand rain, snow and high outdoor temperatures?
An outdoor-rated transformer can be designed with a sealed enclosure, waterproof cable glands, outdoor cables and epoxy resin encapsulation. The required IP rating, ambient temperature range, UV exposure and installation conditions should be confirmed before production.
9. What should I check if the outdoor lights do not turn on?
First check the mains input, circuit breaker, timer, photocell and transformer input terminals. Then measure the transformer output voltage and inspect the low-voltage cables, connectors and lighting fixtures for loose connections, short circuits or water ingress. Disconnect the power before carrying out any inspection.
10. How can the service life of an outdoor lighting transformer be extended?
Select sufficient transformer capacity, avoid continuous overload, maintain good heat dissipation and protect all cable connections against moisture. Periodically inspect the enclosure, cables, terminals and mounting position. Correct installation and stable operating conditions can significantly improve long-term reliability.