Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Model Number | XH-M131 |
| Operating Voltage | DC 5V / 12V / 24V |
| Control Mode | Light Control (Photoresistor) |
| Relay Contact Capacity | 10A 250VAC / 10A 30VDC |
| Trigger Sensitivity | Adjustable via Potentiometer |
| PCB Dimensions | 42mm x 32mm x 16mm |
| Mounting Hole Diameter | 3.5mm |
| Indicator LEDs | Power and Relay Status |
| Application Scenario | Street Lights, Garden Lamps, Automatic Signage |
| Package Contents | 1x XH-M131 Module |
Anonymous
Mar 20, 2026
Rating: 5/5
Essential for solar setups
I use these modules in several off-grid solar projects to control loads at night. They draw very little current themselves and handle the switching load efficiently. Highly recommended for anyone building automated lighting systems.
Anonymous
Mar 17, 2026
Rating: 5/5
Compact and effective
Small footprint makes it easy to hide inside junction boxes. The photoresistor responds quickly to changes in light. I've tested it with both 5V and 12V inputs, and performance was consistent across both.
Anonymous
Mar 14, 2026
Rating: 5/5
Perfect for my garden lighting project
This module works exactly as described. I connected it to a 12V LED strip for my garden path, and the automatic on/off feature based on ambient light is very reliable. The potentiometer makes it easy to set the exact darkness level required to trigger the relay.
Anonymous
Mar 11, 2026
Rating: 5/5
Reliable and robust
Been using this for a warehouse exterior light. It handles the voltage spikes well and the relay click is audible but not annoying. The sensitivity adjustment range is wide enough to avoid false triggers from car headlights.
Anonymous
Mar 07, 2026
Rating: 4/5
Good value, clear instructions needed
The hardware quality is solid for the price. It switched my 24V fan system without any issues. However, the labeling on the board is tiny, so having a diagram nearby helps. Once wired correctly, it has been running flawlessly for weeks.
Anonymous
Mar 02, 2026
Rating: 4/5
Works great after figuring out wiring
As a beginner, I found the terminal labels slightly confusing at first, but online tutorials clarified everything. Now it controls my porch light perfectly. Just make sure your power supply matches the selected voltage jumper setting.
Q: How do I adjust the light sensitivity threshold?
A: There is a blue potentiometer on the board. Turn it clockwise to increase sensitivity (trigger at brighter conditions) or counter-clockwise to decrease it (trigger only in darker conditions).
Q: Is the operating voltage selected via software or hardware?
A: It is selected via a hardware jumper cap on the PCB. You must place the jumper on the pins corresponding to your input voltage: 5V, 12V, or 24V.
Q: What is the delay time between light detection and relay switching?
A: The response is nearly instantaneous, typically under 1 second. There is no built-in long delay timer; if you require a delay to prevent flickering, an external timer circuit would be needed.
Q: Can this module handle AC loads directly?
A: Yes, the relay contacts are rated for up to 250VAC, so you can switch AC loads like standard light bulbs, provided the current does not exceed 10A.
Q: Does this module have reverse polarity protection?
A: While the module is robust, we strongly recommend double-checking your positive and negative connections before powering on, as explicit reverse polarity protection circuitry is not featured on this specific budget model.
Universal 5800 Super Glue for Plastic, Metal, Glass, and Wood, 10-Second Fast Curing
$2.01
White Noise Wood Chip Core Grid Scented Candle Wooden Core S-Type Brand Name Candle Container Soy Candle Core Wood
$1.50
Zunjue 100% Cotton Paper Block 300g Watercolor Paper, Fine/Medium Grain, Thickened 80 Sheets, Neutral Acid-Free Journal Paper for Art Students, Beginners, Watercolor, Colored Pencil, Pen, Light Wash, Marker
$27.20
Outdoor Waterproof Dry Bag for Rafting and Creek Walking - Large Capacity Backpack for Swimming, Hiking, Diving, and Flood Rescue
$132.00
Lukang 995 Door and Window Fast-Drying Glass Sealant - Transparent Weather-Resistant Neutral Silicone Structural Adhesive
$222.90
Large Flip-Type Water Draining and Air Drying Machine, Fully Automatic Air Knife Blower for Vegetables, Commercial Continuous Drying Equipment
$15,282.00
Large Capacity Household Quilt Storage Bag - Waterproof and Moisture-Proof Duvet Organizer for Moving, Packing, and Luggage Sorting
$5.88
Scented Candle Aluminum Alloy Turntable 360-Degree Rotating Double-Sided Silent Non-Slip Small Turntable for Cake Decorating and DIY
$30.40
Ceramic Five Oxen Painting Brush Washer – Antique-Style Ink Well for Calligraphy & Traditional Painting
$16.90
Liupintang 3-in-1 Brush Washing Bucket with Palette - Portable Handheld Multi-Function Art Tool for Chinese Painting, Watercolor, and Gouache, Foldable Small Pail
$17.80
ZGT Type Damped Spring Vibration Isolator for Large Equipment such as Chillers and Diesel Generator Sets
$135.00
Shanlian Lake Brush Wool Felt Mat for Calligraphy and Painting, Washable Desk Pad for Beginners
$22.70
New Silicone Data Cable Protector, Anti-Break and Anti-Bite Cord Organizer for Charging Lines and Headphones, Universal Phone Accessory
$5.58
Cafeteria Bulb Vegetable Cutter - Complete Kelp Shredding Production Line, All-in-One Slicing, Dicing, and Shredding Machine
$10,000.00
Electric Water Dispenser Pump for Bottled Mineral Water - Automatic Press-Type Purified Water Pump Manufacturer
$113.00
Heavy-Duty Industrial Wiping Cloths for Auto Painting, Baking, Film Application, Detailing, and Degreasing – Absorbent, Oil-Removing, Lint-Free Paper and Cloth
$120.00
6-Cavity Oval Beehive Silicone Mold for DIY Handmade Soap - Heat-Resistant Non-Stick Large Mold for Milk and Essential Oil Soaps
$4.93
Data Cable Organizer Bag with Zipper for Charging Cables and Adapters - Dustproof Desktop Storage
$5.90
Auby Baby Rattle Toy for 6+ Months, Chewable Wave Drum and Shaker for Newborns and Toddlers
$24.90
Preferred 45L Industrial Pulping Machine Spinach Fresh Pulp Galangal Carrot Tomato Sauce Making Fruit and Vegetable Industry Blender
$7,632.00
KAD Professional Thickened Sketch Blending Stump - Dual-Head Smudging Pen for Art Students
$9.90
Beijing Imported Dental Implant Package - Appointment Booking, X-Ray, and Treatment Plan Included
$1.00
![Huahu [Top Layer Cowhide] Japanese-Style Men's Genuine Leather Belt, Simple Casual Business Wide Belt with Automatic Buckle](https://www.gosteppe.com/cache/small/product/269537/legacy-main-e3e965ff85d9032ca79f72b8.webp)
Huahu [Top Layer Cowhide] Japanese-Style Men's Genuine Leather Belt, Simple Casual Business Wide Belt with Automatic Buckle
$423.00
Wall-Mounted Towel Storage Box Large Capacity for Bathroom
$8.42
Loctite 480/411/403/407/406/414/420/401/415 Heat-Resistant 495 High-Temp 417/416 Instant Adhesive
$26.80
Ulanzi CSS1 Camera Quick-Release Shoulder Strap - Universal Anti-Slip Crossbody Belt for Fujifilm, Sony, and Canon DSLR/Mirrorless Cameras
$109.00
Invisalign Retainer Storage Case Portable Travel Container for Clear Aligners Dentures Orthodontic Appliances Cleaning Q
$6.59
70*275mm Flocked Abrasive Pad Circular Backing Sanding Disc Polishing Sheet Self-Adhesive Scouring Pad Brushed Finish Cloth
$4.05
50/100 Pairs Men's Foot Therapy Short Socks - Odor-Resistant, Low-Cut, Summer Thin, Disposable Street Market Socks
$19.99
Biliansheng No-Shave Hair Transplant - Hairline and Crown Restoration for Men and Women
$100,000.00
![[Youxin Electronics] GP2Y0E03 Infrared Distance Sensor Module 4-50cm Range](https://www.gosteppe.com/cache/medium/product/74667/legacy-main-4da8cadc5fc82afe91b124e3.webp)
![[Trial Pack] Xianlang Complete Cat Treat Sticks Meal Packs Main Course Cans Freeze-Dried Cat Food Sample Snacks Gift Set](https://www.gosteppe.com/cache/medium/product/208273/legacy-main-9ec245ebf781f65a434ba854.webp)
