Spec Sheet - F4-5A

Availability	In Stock
Condition	Brand New

The Ltech F4-5A is a high-capacity, 4-channel wireless receiver designed to be the central hub of your constant voltage LED lighting system. It acts as a versatile wireless light switch and receiver, capable of controlling everything from single color and CCT tunable white to dynamic RGB and RGBW LED strips. With a robust 5A per channel output, it provides ample power for both residential and commercial projects. As a core component of the Ltech LT-BUS system, the F4-5A pairs seamlessly with F-series remotes, EX series wall panels, and the WiFi-106 gateway, allowing for flexible control from a simple remote, an elegant wall switch, or a full-featured smartphone app. Its wide DC5-24V input range ensures compatibility with the most common LED strip lights on the market.

The Ltech F4-5A wireless receiver, showing input and output terminals.

Wiring diagram for connecting power, LED strips, and the F4-5A receiver.

Key Features

Universal 4-in-1 Control

One receiver for all your needs: single color dimming, CCT color temperature tuning, RGB color changing, and 4-channel RGBW.

High-Capacity Power Output

Delivers a strong 5A per channel (20A total), ideal for powering longer runs or high-density LED strips without voltage drop issues.

Seamless Ltech Ecosystem Integration

Pairs effortlessly with Ltech F-series RF remotes, EX series touch panels, and the WiFi-106 gateway for smart app control.

Wide Voltage Compatibility

Operates on any DC voltage from 5V to 24V, making it a flexible choice for various LED lighting projects.

Reliable RF 2.4GHz Signal

Utilizes a stable RF 2.4GHz wireless signal for responsive, cable-free control from up to 30 meters away.

Technical Highlights

4-Channel PWM Constant Voltage output for smooth, flicker-free dimming.
Built-in protection for over-current, over-heat, short circuit, and reverse connection.
Simple one-key pairing with remotes and touch panels.
Higher 5A/channel output provides a significant power advantage over the F4-3A model.

System compatibility diagram showing the F4-5A with remotes, touch panels, and WiFi gateway.

Product Specifications

Parameter	Details
Model	F4-5A
Input Voltage	DC5V ~ 24V
Output Type	Constant Voltage (PWM)
Output Channels	4
Output Current	5A × 4CH, 20A Max Total
Output Power (Max)	100W (5V) / 240W (12V) / 480W (24V)
Control Signal	RF 2.4GHz
Remote Distance	30m (line of sight)
Working Temperature	-30℃ ~ 55℃
Dimensions (L×W×H)	175 × 44 × 30 mm
Certifications	CE, FCC, RoHS

Application Scenarios

Advanced Home Lighting Create the perfect ambiance in living rooms, kitchens, or home theaters. Use the F4-5A as a wireless dimmer switch and receiver for under-cabinet CCT strips or dynamic cove lighting with RGBW LED strips.

Commercial and Retail Spaces Implement dynamic, eye-catching lighting in storefronts, restaurants, and bars. The high power output can drive extensive lighting setups, all controlled wirelessly from a central touch panel or remote.

Architectural Accent Lighting Seamlessly integrate lighting control into building facades, hallways, and reception areas. The reliable RF signal ensures consistent performance without the need for running new control wires.

How to Control & Use This Wireless Receiver

Ensure power is off before wiring.
Connect your DC5-24V power supply to the 'INPUT' V- and V+ terminals on the F4-5A.
Connect your LED strip lights to the 'OUTPUT' terminals. The common anode (V+) connects to the V+ terminal, and the negative wires connect to CH1, CH2, CH3, and CH4.
Press the 'Learning key' button on the F4-5A receiver. The indicator light will turn on.
Immediately press the desired zone button on your compatible F-series remote or EX series touch panel. The receiver's indicator light will flash to confirm successful pairing.
To add app control, pair the F4-5A with a WiFi-106 gateway by following the gateway's user manual.
Power on the system and test your lighting control.

⚠ Precautions

Always use a power supply with a voltage that matches your LED strips (e.g., a 24V power supply for 24V strips).
Do not exceed the maximum load of 5A per channel or 20A total for the receiver.
Ensure proper ventilation around the receiver to prevent overheating.
This is a constant voltage receiver. Do not use it with constant current LED fixtures.

What's in the Box

✓1x F4-5A Wireless Receiver
✓1x User Manual

⇩ Downloads & Documents

PDFF4-3A

Frequently Asked Questions

Q: What types of LED lights can the F4-5A control?

A:The F4-5A is a 4-in-1 controller for constant voltage LED lights, including single color, CCT (tunable white), RGB, and RGBW strips.

Q: What is the main difference between the F4-5A and the F4-3A model?

A:The F4-5A has a higher current capacity of 5 Amps per channel, compared to the F4-3A's 3 Amps per channel. This makes the F4-5A suitable for more powerful or longer LED strip installations.

Q: Do I need a remote control to use this receiver?

A:Yes, this is a receiver only. You need a compatible Ltech F-series remote or EX-series touch panel to send it a control signal.

Q: Can I control this receiver with my smartphone?

A:Yes, you can control the F4-5A with a smartphone app by pairing it with an Ltech WiFi-106 gateway (sold separately).

Q: What kind of power supply is required?

A:You need a constant voltage DC power supply with an output voltage that matches your LED strips (e.g., DC 12V or DC 24V). The power supply's wattage must be sufficient to handle the total load of your strips.

Q: How many F4-5A receivers can I pair to a single remote zone?

A:You can pair multiple F4-5A receivers to the same zone on a remote to synchronize control over a large area.

DC5-24V Wireless receiver F4-5A