--- product_id: 7893757 title: "HiLetgo 2pcs DC 12V 2 Channel Relay Module with Isolated Optocoupler High and Low Level H/L Level Trigger Module Triggered by DC 12V" brand: "hiletgo" price: "₱1223" currency: PHP in_stock: true category: "Hi Letgo" url: https://www.desertcart.ph/products/7893757-hiletgo-2pcs-dc-12v-2-channel-relay-module-with-isolated store_origin: PH region: Philippines --- # 12V DC coil voltage 2-channel dual relay control Optocoupler isolation for stable, noise-free switching HiLetgo 2pcs DC 12V 2 Channel Relay Module with Isolated Optocoupler High and Low Level H/L Level Trigger Module Triggered by DC 12V **Brand:** hiletgo **Price:** ₱1223 **Availability:** ✅ In Stock ## Summary > ⚡ Double the control, zero compromise — power your projects like a pro! ## Quick Answers - **What is this?** HiLetgo 2pcs DC 12V 2 Channel Relay Module with Isolated Optocoupler High and Low Level H/L Level Trigger Module Triggered by DC 12V by hiletgo - **How much does it cost?** ₱1223 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/7893757-hiletgo-2pcs-dc-12v-2-channel-relay-module-with-isolated) ## Best For - hiletgo enthusiasts ## Why This Product - Trusted hiletgo brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Robust Isolation:** Optocoupler design ensures stable performance and protects your control board. - • **Heavy-Duty Switching:** Handles up to 10A at 250V AC or 30V DC — built for serious loads. - • **Flexible Trigger Modes:** Set high or low level triggers via jumper to fit any project need. - • **Dual-Channel Powerhouse:** Control two independent circuits with precision and ease. - • **User-Friendly Interface:** Screw terminals and mounting holes make installation quick and secure. ## Overview The HiLetgo 2pcs DC 12V 2 Channel Relay Module features isolated optocouplers for noise-free switching, supports both high and low level triggers, and can handle up to 10A at 250V AC or 30V DC. Designed with user-friendly screw terminals and mounting holes, this compact module (50x26x18.5mm) offers reliable dual-channel relay control ideal for advanced DIY and professional automation projects. ## Description Description : 1. The module uses genuine quality relay , normally open interfaces Maximum load : AC 250V/10A, DC 30V/10A; 2. The power indicator (green) , relay status indicator (red) 3. Module size : 50mm * 26mm * 18.5mm (L * W * H) 4. Has four mounting bolts holes , hole 3.1mm, 44.5mm * 20.5mm pitch Module Interface: 1. DC +: positive power supply DC 12V 2. DC-: negative power connection 3. IN1: 1 channel signal to trigger the end , you can set a high or low level control relay 4. IN2: 2 -channel signal to trigger the end , you can set a high or low level control relay Relay Outputs: 1. NO1: After a relay normally open interfaces , relay before floating, shorted pull with COM1 2. COM1: 1 relay common interface 3. NC1: 1 relay normally closed port, COM1 relay shorted before and after the pull- vacant4. NO2:way normally open relay interface, the relay before floating , pull back and COM2 short 5. COM2: 2 Common Interface relay 6. NC2: 2 -way normally closed relay interface relay short front and COM2 , pull vacant post Note:This relay will be triggered by DC 12V, can not trigger with the arduino signal at 5V. Package Included:2*DC 12V 2 Channel Relay Module With Isolated Optocoupler High and Low Level Trigger ## Features - Can set high or low level trigger with jumper, to meet the demand of more trigger applications; - With patch optical isolation, strong drive ability and stable performance; - The module can be high or low by a jumper setting trigger; - Interface design humane, all interfaces can be connected directly via terminal wiring leads , very convenient ; - Fault-tolerant design , even if the control line is broken , the relay will not operate ; ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00LW15F42 | | Best Sellers Rank | #73,660 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #47 in Electromechanical Relays | | Brand Name | HiLetgo | | Coil Voltage | 12 volts | | Connector Type | Screw | | Contact Current Rating | 10 A | | Contact Material | Silver | | Contact Type | Normally Open | | Current Rating | 10 A | | Customer Reviews | 4.6 4.6 out of 5 stars (513) | | Item Weight | 1.76 ounces | | Manufacturer | HiLetgo | | Maximum Switching Current | 10 A | | Maximum Switching Voltage | 250 volts | | Minimum Switching Voltage | 12 volts_of_direct_current | | Model | 3-01-0342 | | Mounting Type | PCB Mount | | Number of Items | 2 | | Number of Packs | 2 | | Operation Mode | Manual | | Part Number | 3-01-0342 | | UPC | 702082655962 | | Unit Count | 2 Count | | Wattage | 50 watts | ## Product Details - **Connector Type:** Screw - **Contact Material:** Silver - **Contact Type:** Normally Open - **Current Rating:** 10 A - **Mounting Type:** PCB Mount ## Images ![HiLetgo 2pcs DC 12V 2 Channel Relay Module with Isolated Optocoupler High and Low Level H/L Level Trigger Module Triggered by DC 12V - Image 1](https://m.media-amazon.com/images/I/71rOVzcwzIL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: So on "low" the relay triggers when the signal voltage falls below 12v? and "hi" when the signal rises above 12v? can you tune the trigger voltage?thx** A: If you set it to "High" then the relay trips when there is + 12V on INT1 or INT 2. (+12 as in the positive side of the power source) If you set to low, it will trip when their is -12v (technically 0 volts) on INT 1 or INT2 (-12 as in the negative side of the power source) **Q: These are locking in the triggered position (Red light on), even with no trigger voltage. Any ideas, did I get bad ones?** A: When you say no trigger voltage, do you mean that no wires connected? If so then you may have gotten a bad set. Otherwise, check the jumper pins next to the trigger input. See if it set to low. **Q: What is the minimum to maximum voltage for both the low and high?** A: Minimum voltage that will trigger high: 2.5V Maximum voltage that will trigger low: (Vsupply- 2.5V) Measured this with Vsupply values of 12.2V and 13.6V. Used UNI-T UT61E multimeter for voltage measurements. **Q: are these latching relays?** A: No. They have normally open and normally closed contact points and will flip to the normally closed position when the trigger stops. ## Frequently Bought Together - HiLetgo 2pcs DC 12V 2 Channel Relay Module with Isolated Optocoupler High and Low Level H/L Level Trigger Module Triggered by DC 12V - AEDIKO 4pcs DC 12V Relay Module 1 Channel Relay Board with Optocoupler Isolation Support High or Low Level - HiLetgo 12V 4 Channel Relay Module with OPTO-Isolated Support High and Low Level Trigger --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ph/products/7893757-hiletgo-2pcs-dc-12v-2-channel-relay-module-with-isolated](https://www.desertcart.ph/products/7893757-hiletgo-2pcs-dc-12v-2-channel-relay-module-with-isolated) --- *Product available on Desertcart Philippines* *Store origin: PH* *Last updated: 2026-09-18*