Choosing the right photocontrol receptacle can be challenging, especially when voltage and outdoor conditions all matter. A suitable 12-48VDC photocontrol can detect ambient light and switch compatible lighting automatically.
But what if your system needs direct wiring instead of a socket-based connection?
The LT310A-DC is designed for this purpose. It is a DC wire-in photocontrol with a 12–48VDC rated voltage and automatic light sensing. It can support compatible solar, LED, HID, and induction lighting applications.
What Is a Low-Voltage Wire-In Photoelectric Sensor?
How Is the LT310A-DC Designed for 12–48VDC Lighting Systems?
Need automatic control for a low-voltage DC fixture?
The LT310A-DC is built for this job. It has a 12–48VDC rated voltage and a 10–50VDC applicable range. This makes it suitable for compatible low-voltage lighting systems using different DC voltage levels.
Lead Top lists the LT310A-DC for solar energy, LED, HID, and induction lighting applications.
What Does “Wire-In” Mean in a DC Photocontrol?
A wire-in light photocell sensor connects directly to the lighting circuit. It does not rely on a twist-lock socket. The LT310A-DC is specifically identified as a DC wire-in type photocontrol. Its cable is UL1015 18AWG × 16cm. This format can support integration inside a luminaire or other suitable installation locations.
How Does LT310A-DC Provide Automatic Switching?
The LT310A-DC uses an IR-filter phototransistor to detect ambient light. Its turn-on light level is 10–16 Lux. When light conditions reach the specified threshold, the light sensor control switches the connected lighting circuit. A 3–10 second time delay helps define the switching response.
What Are the LT310A-DC Specifications at a Glance?
| Specification | LT310A-DC | Specification | LT310A-DC |
| Product Type | DC Wire-In Type Photocontrol | Rated Voltage | 12–48VDC |
| Applicable Voltage | 10–50VDC | Rated Load | 10A |
| Turn-On Light Level | 10–16 Lux | ON/OFF Ratio | 1:1.5 |
| Time Delay | 3–10 Seconds | Operating Temperature | -40°C to +70°C |
| Switch Life | >10,000 ON/OFF Operations | Ingress Protection | IP66 |
| Light Sensor | IR Filter Phototransistor | Power Consumption | ≤0.5W |
| Cover | Anti-UV Impact-Resistant Polycarbonate | Cable | UL1015 18AWG × 16cm |
Why Is LT310A-DC a Practical Choice for Low-Voltage Lighting?
Why Does the 12–48VDC Voltage Range Matter?
An outdoor light sensor switch must match the lighting system’s voltage. The LT310A-DC is rated for 12–48VDC. Its applicable voltage range extends from 10–50VDC. This makes it useful across a variety of projects. It also gives manufacturers more flexibility when designing compatible limited power fixtures.
How Does the Direct-Wire Design Simplify Lighting Integration?
The LT310A-DC uses a wire-in configuration. The photocontrol connects directly into the lighting circuit. This avoids the need for a separate twist-lock receptacle.
It can also be integrated into suitable fixture designs. Lead Top specifically lists the LT310A among its wire-in photocontrol products for 12–48VDC applications.
What Types of Lighting Can LT310A-DC Control?
The product is specified for several lighting categories:
- Solar energy lighting
- LED luminaires
- Conventional HID
- Electronic HID
- Induction luminaires
The key requirement is compatibility with the photocontrol’s specified DC voltage and load. Its rated load is 10A.
Where Can LT310A-DC Be Used?
How Can LT310A-DC Support Solar Lighting?
The LT310A-DC automatic light sensor is designed for 12–48VDC lighting systems. This makes it suitable for compatible solar-powered outdoor luminaires and standalone DC lighting. Lead Top also lists the product for garden and park lighting. Its role is simple.
It detects ambient light and controls the connected lighting circuit automatically. It is not a solar charger device.
How Can It Be Used With Low-Voltage LED Outdoor Lighting?
Low-voltage LED fixtures can also use the LT310A-DC when their voltage and load match its specifications. The photocontrol supports 12–48VDC and has a 10A rated load. This makes it an option for compatible outdoor LED applications.
Can LT310A-DC Photocell Switch Control HID and Induction Lighting?
Yes. The provided product specifications list conventional HID, electronic HID, and induction luminaires among its compatible applications. The key is to verify the fixture voltage and load before installation.
How Does LT310A-DC Control a DC Luminaire Automatically?
The device follows a simple light-sensing and switching process. Its IR-filter phototransistor monitors changes in ambient light. The specified turn-on light level is 10–16 Lux. When the detected light reaches the relevant switching condition, the photocontrol operates the connected DC lighting circuit.
Step 1: How Does the Photocontrol Detect Ambient Light?
The IR-filter phototransistor senses changes in surrounding light. This provides the input for automatic switching.
Step 2: When Does the Photocontrol Respond to Low Light?
The specified turn-on level is 10–16 Lux. This defines the light condition used for the switching response.
Step 3: How Does LT310A-DC Activate the Lighting Circuit?
The photocontrol responds to the detected light condition and switches the connected DC circuit.
Step 4: How Does It Provide Automatic ON/OFF Operation?
The 3–10 second time delay helps define the switching response. The basic sequence is:
Ambient Light → LT310A-DC → Lighting Circuit → DC Luminaire
How Can You Integrate LT310A-DC Into a DC Lighting System?
What Does a Basic LT310A-DC System Configuration Look Like?
A basic setup places the photocontrol between the DC power source and the compatible luminaire:
12–48VDC Power Supply → LT310A-DC → DC Luminaire
The LT310A-DC is rated for 12–48VDC, with an applicable range of 10–50VDC. It provides automatic light-based switching for compatible DC lighting systems.
How Is a DC Wire-In Photocontrol Installed?
The LT310A-DC uses a direct-wire design. It can be integrated into a suitable luminaire or installed separately with an optional mounting plate. Its cable specification is UL1015 18AWG × 16cm. Use the official wiring diagram for the actual connections.
What Should You Check Before Installing LT310A-DC?
Before installation, verify these key points:
- Confirm the system voltage is within the specified range.
- Check the connected load against the 10A rated load.
- Position the sensor where it can detect ambient light properly.
- Follow the product wiring diagram.
- Check the project’s electrical and installation requirements.
The product also provides IP66 protection for suitable outdoor installations.
FAQs
What Voltage Does LT310A-DC Support?
LT310A-DC has a 12–48VDC rated voltage and a 10–50VDC applicable voltage range.
Can LT310A-DC Work With 48VDC Lighting?
Yes. 48VDC falls within its specified 12–48VDC rated voltage range.
Is LT310A-DC a Wire-In Photocontrol?
Yes. It is a DC wire-in type photocontrol designed for direct integration into compatible lighting circuits.
Can LT310A-DC Be Used for Solar Lighting?
Yes. It is specified for solar energy lighting and provides automatic light-based ON/OFF control.
Can LT310A-DC Be Used With LED Luminaires?
Yes. LED luminaires are among its listed applications when the voltage and load meet its specifications.
What Is the Turn-On Light Level of LT310A-DC?
The specified turn-on light level is 10–16 Lux.
How Long Is the LT310A-DC Time Delay?
The specified time delay is 3–10 seconds. This helps define the switching response.
What Is the Difference Between LT310A-DC and LT104-DC?
LT310A-DC is a wire-in 12–48VDC photocontrol, while LT104-DC uses a different configuration and specification set. Compare their
- Voltage
- Load
- Wiring format
- IP ratings
The Bottom Line
LT310A-DC offers a practical way to automate compatible 12–48VDC outdoor lighting with direct-wire installation and ambient-light sensing. For reliable photocontrollers and application support, Lead Top can help you find the right solution for your lighting project.
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