Optocoupler / Light‑Coupled Relay Modules
Explore our Optocoupler / Light-Coupled Relay Modules in the Relay Modules category to achieve safe, reliable, and noise-free signal switching for your electronic projects. These modules use optical isolation to separate low-voltage control circuits from high-voltage loads, ensuring excellent protection against surges, interference, and electrical noise.
Whether you’re working on industrial automation, sensor interfacing, home automation, or microcontroller-based designs, optocoupler relay modules deliver enhanced stability and long-term performance.
At Pixel Electric, we offer a wide range of high-quality optocoupler and light-coupled relay modules compatible with Arduino, Raspberry Pi, ESP boards, and other development platforms. Our collection is designed to support seamless switching, fast response time, and improved safety standards in both DIY and professional applications.
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KY-019 5V Relay 1 Channel Relay Module
diymore
TZS3,453.50The module features one high-quality relay capable of handling loads up to 250V/10A. The relay module includes an activation indicator LED. Unlike relay modules with two or more channels, this module does not use optocouplers; instead, the...- SKU:
- PERCA32
TZS3,453.50 -
XH-M131 24V Photo-resistor Relay Module
Autonics
TZS8,058.16Features: CATEGORY SPECIFICATIONS Product Name Adjustable Threshold Relay Control Module Device Type Voltage Threshold Relay Switch Module Input Voltage DC 12V Control Method Adjustable potentiometer (threshold setting) Relay Trigger...- SKU:
- PEFST47
TZS8,058.16 -
XH-M131 12V Photo-resistor Relay Module
Autonics
TZS8,058.16Features: CATEGORY SPECIFICATIONS Product Name Adjustable Threshold Relay Control Module Device Type Voltage Threshold Relay Switch Module Input Voltage DC 12V Control Method Adjustable potentiometer (threshold setting) Relay Trigger...- SKU:
- PEFST46
TZS8,058.16 -
24V 8-Channel Relay Module
diymore
TZS16,116.31Features: CATEGORY SPECIFICATIONS Product Name 8-Channel Relay Module Number of Channels 8 Channel Working Voltage 12V DC Trigger Type Active LOW (low-level trigger) Control Compatibility AVR, PIC, ARM, PLC, Arduino, and other...- SKU:
- PECRM47
TZS16,116.31 -
Relay Module 24v Low | 6-channel
diymore
TZS14,965.15Features: CATEGORY SPECIFICATIONS Product Name 24V 6-Channel Relay Module Module Type Multi-Channel Relay Interface Board Channel Count 6 Channels Working Voltage DC 24V Trigger Logic Active-low (LOW signal activates relay) Relay...- SKU:
- PECRM51
TZS14,965.15 -
Relay Module 12v Low | 6-channel
diymore
TZS14,965.15Features: CATEGORY SPECIFICATIONS Product Name 12V 6-Channel Relay Module Module Type Multi-Channel Relay Interface Board Channel Count 6 Channels Working Voltage DC 12V Trigger Logic Active-low (LOW signal activates relay) Relay...- SKU:
- PECRM49
TZS14,965.15 -
24V 4-Channel Relay Module with Optocoupler
diymore
TZS13,813.98Features: CATEGORY SPECIFICATIONS Product Name 4-Channel 24V Relay Module Breakout Board Device Type Opto-isolated Relay Control Module Relay Channels 4 independent channels Control Voltage 24V DC Control Compatibility Arduino, 8051, AVR,...- SKU:
- PERCA30
TZS13,813.98 -
24V 2 Channel Relay Module
diymore
TZS6,906.99Features: CATEGORY SPECIFICATIONS Product Name 24V Relay Module (JD-VCC Version) Module Type Relay Control Module with Separate Power Option Working Voltage DC 24V Trigger Logic Active-low (LOW signal activates relay) Signal Input...- SKU:
- PECCR56
TZS6,906.99 -
Relay Module 5v Low | 6-channel
diymore
TZS12,662.82Features: CATEGORY SPECIFICATIONS Product Name 5V 6-Channel Relay Module Module Type Multi-Channel Relay Interface Board Channel Count 6 Channels Working Voltage DC 5V Trigger Logic Active-low (LOW signal activates relay) Relay...- SKU:
- PECRM48
TZS12,662.82 -
1 Channel 5V Low Level Trigger Relay Module Optocoupler Isolation Terminal
diymore
TZS4,604.66Normally open interface maximum load: AC 250V/10A, DC 30V/10A. SMD optocoupler isolation, strong driving capability, stable performance; trigger current 5mA. Fault-tolerant design, the relay will not move even if the control line is broken. Power...- SKU:
- PERMA56A
TZS4,604.66 -
12V 8-Channel Relay Module
diymore
TZS14,965.15Features: CATEGORY SPECIFICATIONS Product Name 8-Channel Relay Module Number of Channels 8 Channel Working Voltage 12V DC Trigger Type Active LOW (low-level trigger) Control Compatibility AVR, PIC, ARM, PLC, Arduino, and other...- SKU:
- PECRM46
TZS14,965.15 -
12V 4-Channel Relay Module with Optocoupler
diymore
TZS13,813.98Features: CATEGORY SPECIFICATIONS Product Name 4-Channel 12V Relay Module Breakout Board Device Type Opto-isolated Relay Control Module Relay Channels 4 independent channels Control Voltage 12V DC Control Compatibility Arduino, 8051, AVR,...- SKU:
- PERCA28
TZS13,813.98 -
SOLD OUT
5V 1 Channel Relay with Optocoupler Module
Dikavs
TZS3,453.50Features: CATEGORY SPECIFICATIONS Product Name 1-Channel 5V Optocoupler Relay Module Device Type Isolated Relay Control Module Working Voltage DC 5V Trigger Current ~5 mA Trigger Type Low-level trigger Isolation Type SMD Optocoupler...- SKU:
- PERDFT18
TZS3,453.50 -
SOLD OUT
5V Relay 1 Channel Relay Module
diymore
TZS3,453.50Features: CATEGORY SPECIFICATIONS Product Name 5V 2-Channel Relay Module Module Type High-level Trigger Relay Control Board Channel Count 2 Channels Working Voltage DC 5V Control Signal Range 5V–12V TTL signal Trigger...- SKU:
- PERCA25
TZS3,453.50 -
5V 4 Channel Relay Module
diymore
TZS12,662.82Features: CATEGORY SPECIFICATIONS Product Name 5V 4-Channel Relay Module Module Type Multi-Channel Relay Interface Board Channel Count 4 Channels Working Voltage DC 5V Driver Current per Channel ~50–60 mA Relay Type Electromagnetic...- SKU:
- PECRM55
TZS12,662.82 -
5V 16 Channel Relay Module
diymore
TZS34,534.95Features: CATEGORY SPECIFICATIONS Product Name 5V 16-Channel Relay Module (Optocoupler + LM2576 Power Supply) Module Type Multi-Channel Relay Control Board Channel Count 16 Channels (individually controllable) Working Voltage DC 5V Power...- SKU:
- PECRM93
TZS34,534.95 -
12V 16 Channel Relay Module
diymore
TZS34,534.95Features: CATEGORY SPECIFICATIONS Product Name 12V 16-Channel Relay Module (Optocoupler + LM2576 Power Supply) Module Type High-Density Multi-Channel Relay Control Board Channel Count 16 Channels (independent control) Working Voltage DC...- SKU:
- PECRM84
TZS34,534.95 -
5V 8-Channel Relay Module
diymore
TZS14,965.15Features: CATEGORY SPECIFICATIONS Product Name 5V 8-Channel Relay Module Module Type Multi-Channel Relay Interface Board Channel Count 8 Channels Working Voltage DC 5V Trigger Logic Active-low (LOW signal activates relay) Relay...- SKU:
- PECRM44
TZS14,965.15 -
5V 2 Channel Relay Module
diymore
TZS6,906.99Features: CATEGORY SPECIFICATIONS Product Name 5V Relay Module (JD-VCC Version) Module Type Relay Control Module with Separate Power Option Working Voltage DC 5V Trigger Logic Active-low (LOW signal activates relay) Signal Input...- SKU:
- PECCR55
TZS6,906.99