1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your BTF-LIGHTING DC 24V 10A 240W Aluminum Power Supply. This power supply is designed to convert AC 110/220V to a stable DC 24V output, suitable for various electronic equipment, including 5050 LED strips.
2. Safety Information
WARNING: Improper installation or use can lead to electric shock, fire, or damage to the unit and connected devices. Please read all instructions carefully before installation.
- Voltage Selection: Before connecting to the mains power, ensure the 110V/220V input voltage selector switch is set correctly for your local power supply. Incorrect voltage selection will damage the unit.
- Professional Installation: Installation should be performed by a qualified electrician or knowledgeable individual to ensure compliance with local electrical codes and safety standards.
- Exposed Terminals: The terminal block connections are not fully enclosed. To prevent accidental contact, especially from children, pets, or debris, it is highly recommended to install the power supply within a protective, ventilated enclosure.
- Grounding: Always ensure the unit is properly grounded to prevent electric shock.
- Ventilation: Ensure adequate airflow around the power supply to prevent overheating. Do not cover the ventilation holes.
- Indoor Use Only: This power supply is designed for indoor use in dry environments. Do not expose to moisture or extreme temperatures.
- Overload Protection: Do not exceed the maximum output current (10A) or power (240W) to avoid triggering overload protection or damaging the unit.
3. Product Features
- Converts AC 110/220V to DC 24V 10A 240W.
- Dual input voltage selection switch (110V/220V).
- Built-in protection against short-circuit, overload, and overvoltage.
- Wide input voltage range with constant and precise output voltage.
- Aluminum casing for efficient heat dissipation.
- Safety compliant with CE and RoHS standards.
- High efficiency and stable performance.
4. Specifications
| Parameter | Value |
|---|---|
| Model Number | A24V10A |
| Input Voltage | AC 110V / 220V (selectable) |
| Output Voltage | DC 24V |
| Output Current | 10A |
| Output Power | 240W |
| Dimensions (L x W x H) | 190 x 108 x 50 mm (7.48 x 4.25 x 1.97 inches) |
| Weight | 760 g |
| Shell Material | Metal casing / Aluminum base |
| Protection | Short-circuit, Overload, Overvoltage |
| Safety Compliance | CCC / FCC / CE, RoHS |
| Operating Temperature | 0 ~ 40 ℃ |
| Storage Temperature | -20 ~ 60 ℃ |
| Ambient Humidity | 0 ~ 95% non-condensation |
| Mounting Type | Surface mount |
5. Setup and Installation
Follow these steps for proper installation:
- Unpack and Inspect: Carefully remove the power supply from its packaging. Inspect for any physical damage.
- Select Input Voltage: Locate the red switch on the side of the unit. Set it to either 110V or 220V according to your local mains power supply. Failure to set the correct voltage will damage the unit.

An overhead view of the BTF-LIGHTING DC 24V 10A 240W power supply, highlighting its physical dimensions: approximately 19.0 cm (7.48 inches) in length, 10.8 cm (4.25 inches) in width, and 5.0 cm (1.97 inches) in height. The image shows the terminal block for wiring connections and ventilation grilles on the metal casing. The voltage selector switch is typically located near the input terminals.
- Mounting: Secure the power supply to a stable, non-flammable surface using appropriate screws through the designated mounting holes. Ensure there is sufficient space (at least 5 cm or 2 inches) around the unit for proper ventilation.
- AC Input Wiring: Connect your AC mains power cables to the input terminal block. Connect the Live (L) wire, Neutral (N) wire, and Ground (GND) wire to their respective terminals. Ensure all connections are tight and secure.
- DC Output Wiring: Connect your DC load (e.g., LED strips) to the output terminal block. Connect the positive (+) wire of your load to the V+ terminal and the negative (-) wire to the V- terminal. Verify correct polarity to prevent damage to your devices.
- Terminal Protection: After wiring, consider installing the power supply within a protective, ventilated enclosure to cover the exposed terminals and enhance safety.
6. Operation
Once properly installed and wired, the power supply operates automatically. When AC power is applied, it will convert it to a stable DC 24V output. An indicator light (if present) will illuminate to show the unit is powered on.
- Ensure the total power consumption of all connected devices does not exceed 240W (10A at 24V).
- Avoid frequently switching the unit on and off, as this can reduce its lifespan.

An example of LED strip lighting installed in a modern living room, demonstrating a typical application for the BTF-LIGHTING power supply. The LED strips illuminate the edges of a sofa and a wall, creating ambient lighting.
7. Maintenance
The BTF-LIGHTING power supply requires minimal maintenance. Follow these guidelines to ensure longevity:
- Cleaning: Periodically clean the exterior of the unit with a dry, soft cloth. Ensure the power supply is disconnected from the mains before cleaning. Do not use liquid cleaners.
- Ventilation: Regularly check that the ventilation holes are free from dust and obstructions to maintain proper airflow.
- Connections: Occasionally inspect the wiring connections to ensure they remain tight and secure.
- Storage: If storing the unit, ensure it is in a dry, cool environment within the specified storage temperature range (-20 ~ 60 ℃) and humidity (0 ~ 95% non-condensation).
8. Troubleshooting
If you encounter issues with your power supply, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No output power / Unit not turning on | Incorrect input voltage selection Loose AC input wiring No AC power to the outlet Internal fuse blown | Verify the 110V/220V switch setting. Check AC input connections (L, N, GND). Test the outlet with another device. Contact support; do not attempt to replace internal components. |
| Output voltage is unstable or incorrect | Overload Loose DC output wiring Faulty connected device | Reduce the load to below 240W/10A. Check DC output connections (V+, V-). Test the power supply with a different load. |
| Unit is overheating | Insufficient ventilation Overload High ambient temperature | Ensure adequate space around the unit and clear ventilation holes. Reduce the connected load. Operate in a cooler environment. |
| Short-circuit protection activated | Short circuit in connected load or wiring | Disconnect the load and check for short circuits in your wiring or device. Correct the short circuit before reconnecting. |
9. Warranty and Support
Information regarding specific warranty terms and conditions for this product is not available in the provided data. For warranty claims or technical support, please contact your retailer or the manufacturer directly using the contact information provided at the point of purchase.
Manufacturer: BTF-LIGHTING Technology Co., Limited