Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Operating Voltage | 12V DC |
| Sensor Type | Photoresistor (LDR) |
| Relay Contact Rating | 10A 250VAC / 10A 30VDC |
| Detection Mode | Light Seeking / Light Activated |
| Sensitivity Adjustment | Potentiometer Adjustable |
| Output Signal | Digital Switch (High/Low) |
| PCB Dimensions | 45mm x 25mm x 18mm |
| Mounting Hole Diameter | 3.5mm |
| Response Time | < 10ms |
| Application | Street Lights, Garden Lamps, Auto Dimming |
Anonymous
Mar 29, 2026
Rating: 4/5
Good value, clear instructions needed
The hardware quality is solid and the relay clicks loudly which confirms it's working. However, the diagram on the board is a bit small. Once I figured out the VCC and GND pins, it was smooth sailing.
Anonymous
Mar 26, 2026
Rating: 5/5
Perfect for my garden lighting project
This module worked exactly as described. I connected it to a 12V LED strip for my porch, and the sensitivity adjustment is very precise. It turns on right at dusk without any flickering.
Anonymous
Mar 25, 2026
Rating: 5/5
Easy to integrate
As someone new to electronics, I found this very easy to use. Just power it up and tweak the blue potentiometer until the LED indicator behaves how you want. Works great with my Arduino project too.
Anonymous
Mar 13, 2026
Rating: 5/5
Exactly what I needed
Compact size fits easily into my custom enclosure. The 12V relay handles the load of my halogen bulbs without getting hot. Very satisfied with this purchase.
Anonymous
Mar 03, 2026
Rating: 4/5
Solid component, slight delay
Overall a great sensor module. There is a tiny fraction of a second delay when the light changes, but it's negligible for street light applications. The build quality feels durable.
Anonymous
Mar 01, 2026
Rating: 5/5
Reliable light detection
I've installed three of these for my solar setup. They handle the 12V input perfectly and the photoresistor reacts quickly to changes in ambient light. Highly recommended for automation.
Q: Can this module handle 24V input instead of 12V?
A: No, this specific model is designed strictly for 12V DC input. Applying 24V may damage the onboard components and the relay coil.
Q: What is the maximum current the relay can switch?
A: The relay contacts are rated for up to 10 Amps at 250V AC or 30V DC. We recommend staying below 8A for long-term reliability.
Q: Can I connect this directly to a mains powered lamp?
A: You can use the relay to switch a mains-powered lamp, but the control side (sensor) must still be powered by a 12V DC source. Ensure proper insulation and safety measures when dealing with mains voltage.
Q: Does the relay stay on when it gets dark or when it gets light?
A: By default, this is a 'light seeking' module, meaning the relay activates when light is detected. However, many versions have a jumper or can be wired inversely to activate in darkness. Please check the specific silkscreen on your board for NO/NC terminals.
Q: Is the sensitivity adjustable automatically or manually?
A: It is manually adjustable using the blue potentiometer located on the PCB. You can turn it clockwise or counter-clockwise to set the exact lux level at which the switch triggers.
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)
