-1000x1000.jpeg "Heavy-Duty Rainproof LED Power Supply Transformer - 400W 12V Output")
-270x270.jpeg "Heavy-Duty Rainproof LED Power Supply Transformer - 400W 12V Output")
-270x270.jpeg "Heavy-Duty Rainproof LED Power Supply Transformer - 400W 12V Output")
-270x270.jpeg "Heavy-Duty Rainproof LED Power Supply Transformer - 400W 12V Output")
-270x270.jpeg "Heavy-Duty Rainproof LED Power Supply Transformer - 400W 12V Output")
-270x270.jpeg "Heavy-Duty Rainproof LED Power Supply Transformer - 400W 12V Output")
-270x270.jpeg "Heavy-Duty Rainproof LED Power Supply Transformer - 400W 12V Output")
-270x270.jpeg "Heavy-Duty Rainproof LED Power Supply Transformer - 400W 12V Output")
Heavy-Duty Rainproof LED Power Supply Transformer - 400W 12V Output
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Product Description
Vertical Mounting is Critical: To maintain its "rainproof" status, these units must be mounted vertically with the wire terminals facing downward. This prevents water from entering the cooling vents or pooling on the terminals.
Ventilation: Because these units generate significant heat at 400W, they often use an aluminum shell for heat dissipation
9 Ensure there is adequate airflow around the unit; do not bury it or enclose it in a tiny unvented box.Wiring Guide:
L / N: AC Input (Line and Neutral).
GND / $\frac{1}{\equiv}$: Earth Ground (Crucial for outdoor safety).
+V / -V: 12V DC Output to your LED lights.
10
Usage Tips
The 80% Rule: For long-term reliability, it is best practice to only load the transformer to 80% of its maximum capacity. For a 400W unit, try to keep your total LED wattage under 320W.
Voltage Drop: When running long distances of 12V wire from the transformer to the LEDs, you may experience a drop in brightness. Use thicker gauge wire (like 12AWG or 14AWG) to minimize this.
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