Gebildet 10pcs Plastic Reed Switch
4.4Editor score
Compact 3mm diameter
Wide voltage range
Includes ten switches
In this guide
Magnetic switches offer a sleek and reliable way to control LED lighting without visible buttons. They use reed technology to activate lights when magnets come close, making them ideal for hidden or automated setups.
We compared ten highly rated products based on voltage compatibility, build quality, and ease of installation. Our list covers everything from tiny project modules to rugged sensor sets for security lighting.
Each pick highlights specific strengths like waterproofing, contact types, or included hardware. Prices and availability change frequently, so check the latest details before buying to ensure you get the right fit.
Top 3 Picks for Best Magnetic Switches for LED Lighting
Magnetic Reed Switch Normally Closed/Open
4.8Editor score
Waterproof design
Dual contact modes
Secure mounting kit
Magnetic Reed Switch MRS087BLQ
M8 connector type
Built-in LED indicator
Industrial band mount
Top 10 Best Magnetic Switches for LED Lighting in 2026 Compared
The table below offers a side-by-side look at voltage ratings, contact types, and package contents for every product we reviewed to help you decide quickly.
ProductsSpecificationsEditor scorePrice
Best Budget
ZORZA 3Pcs Tiny 3-Mode
3V low voltage
3-mode control
PCB construction
For 3D printing
4.3Editor score
Editor's Choice
Magnetic Reed Switch Normally Closed/Open
12V max voltage
Waterproof design
NO/NC combined
Includes screws kit
4.8Editor score
Best Premium
5Sets Magnetic Reed Switch B31
100V max rating
500mA capacity
Anti-fire ABS
Trigger 10-20mm
4.3Editor score
4Sets Magnetic Reed Switch
100V max rating
500mA capacity
ABS material
Great for alarms
4.2Editor score
Gebildet 10pcs Plastic Reed Switch
100V max voltage
2.5mm diameter
0.5A current
Includes magnets
4.3Editor score
Gebildet 10pcs Plastic Reed Switch 3mm
100V max voltage
3mm diameter
0.5A current
Pack of ten
4.4Editor score
Magnetic Reed Switch MRS087BLQ
6-24V range
500mA current
M8 connector
LED indicator
LBY 3 Sets Magnetic Reed Switch
5V to 24V
ABS plastic shell
Includes screws
Gap alarm use
4.4Editor score
Reed Switch Magnetic Switches 20 Pack
Small device size
Ferrous materials
Non-contact switch
Pack of twenty
4.1Editor score
Gebildet 3 Sets NO/NC Black Magnetic
000V max rating
30cm cable
Hidden window
Includes stickers
3.9Editor score
1. ZORZA 3Pcs Tiny 3-Mode – Ideal for 3D Printer Lighting
ZORZA 3Pcs Tiny 3-Mode
Three mode control
3V low voltage
Compact PCB size
White light output
This ZORZA kit offers three tiny magnetic switches designed for low voltage 3V applications. It earns a solid 4.3 rating from users who appreciate its compact size for electronics projects.
Pros
- Tiny footprint fits small enclosures
- Seamless integration into projects
- Energy efficient operation
- Durable PCB construction
- Versatile placement options
Cons
- Limited to 3V supply
- No included mounting screws
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The main strength lies in its ability to provide seamless integration for 3D printer lighting or model making. The PCB construction ensures reliability while the 3-mode control gives you flexibility in how the light responds to magnets.
While the voltage is limited to 3V, this is acceptable for small LED modules or craft decoration where high power isn't needed. The lack of included screws means you may need to source your own mounting hardware.
Electronics enthusiasts and hobbyists looking to add brilliant touches to their projects should buy this. It brings innovation and energy efficiency to the forefront of your creative lighting work.
Perfect for Custom Projects
The compact design allows you to hide the switch inside drawers or model parts without bulk.
Energy Efficiency
Low voltage operation ensures long battery life for portable or battery powered lighting setups.
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2. Magnetic Reed Switch Normally Closed/Open – Excellent Waterproof Security Switch
Magnetic Reed Switch Normally Closed/Open
Waterproof design
12V max rating
NO and NC modes
Includes screws stickers
This magnetic reed switch kit provides two sets of waterproof door contact sensors with flexible NO/NC options. With a 4.8 rating, it is a top choice for secure lighting or alarm replacements.
Pros
- Highly rated for reliability
- Waterproof for outdoor use
- Flexible contact selection
- Complete mounting kit
- Ideal for theft deterrent
Cons
- Limited to 12V systems
- Small package size
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The waterproof design stands out for outdoor or humid environments where standard switches might fail. The ability to choose between Normally Open or Normally Closed modes freely makes it adaptable to various wiring needs.
Though it operates at 12V, this covers most low voltage lighting and sensor setups. The small size is convenient but might require careful alignment for larger gaps in some applications.
Homeowners looking to enhance security or replace existing alarm systems should buy this. The included stickers and screws make installation straightforward for wooden doors or windows.
Weather Resistant Build
Waterproofing ensures the switch continues to function reliably even in rainy or damp conditions.
Flexible Wiring Options
Combined NC and NO contacts allow you to wire the switch to match your specific system logic.
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3. 5Sets Magnetic Reed Switch B31 – Versatile Multi Voltage Security Kit
5Sets Magnetic Reed Switch B31
Works 5V 24V
Anti fire ABS body
100V max rating
Trigger 10-20mm
The B31 model offers five sets of magnetic switches that work across a wide range of DC voltages from 5V to 24V. It holds a 4.3 rating for its utility in security and lighting applications.
Pros
- Works with multiple voltages
- Fire resistant housing material
- Includes five complete sets
- Strong contact capacity
- Suitable for cabinets
Cons
- Limited to wood mounting
- Black color only
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Its anti-fire ABS material provides safety for indoor use near electrical components. The trigger range of 10 to 20mm allows for flexible placement where doors or windows open.
The package includes screws for mounting on wood only, which limits use in metal surfaces without adapters. However the 500mA contact capacity is sufficient for most low voltage LED lights.
Security installers and DIYers protecting doors or cabinets should buy this. The wide voltage compatibility makes it a versatile addition to any low voltage project.
Safety First Material
Anti-fire ABS ensures the switch housing won't contribute to fire risks in enclosed spaces.
Wide Voltage Range
Compatibility with 5V to 24V systems means you can use this for various lighting setups.
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4. 4Sets Magnetic Reed Switch – Solid Value for LED Integration
4Sets Magnetic Reed Switch
ABS plastic casing
000V max rating
Works 5V 24V
Great for relay use
This four set kit provides magnetic contact switches suitable for LED, relay, and GPS low voltage devices. It maintains a 4.2 rating among users who need reliable alarm or security integration.
Pros
- Affordable four set pack
- Strong voltage compatibility
- Works with relay systems
- Includes mounting hardware
- Compact dimensions
Cons
- Lower rating than B31
- Standard black finish
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The design mirrors the B31 model with similar dimensions and voltage range but comes in a slightly different package. It allows you to add magnetic sensors to existing wired alarm systems easily.
While the rating is slightly lower, the performance remains consistent for basic door protection. The trigger range of 10 to 20mm ensures you can adjust the magnet gap for your setup.
Users protecting multiple doors with limited budget should buy this. It offers a practical solution for theft deterrent and lighting control in standard applications.
Relay Compatibility
The contact capacity supports relay circuits for switching higher power loads safely.
System Expansion
Use these to expand your current wired alarm system without replacing the whole setup.
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5. Gebildet 10pcs Plastic Reed Switch – Best for DIY Magnets
Gebildet 10pcs Plastic Reed Switch
2.5mm thin diameter
Includes ten magnets
100V max voltage
20 to 80C work
This Gebildet kit includes ten plastic reed switches with round magnets for easy DIY projects. It has a 4.3 rating for its convenience and inclusion of multi-use magnets for testing.
Pros
- Includes matching magnets
- Very thin switch body
- Wide temperature range
- High insulation resistance
- Ten switches per pack
Cons
- Very small handling size
- Glass core fragility
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The 2.5mm diameter makes it ideal for embedding in tight spaces where bulk is an issue. The working temperature range from negative 20 to 80 degrees ensures it survives various environments.
The glass core inside is durable but requires careful handling during soldering or mounting. The thin profile can be tricky to grip but offers great flexibility for small applications.
Crafters needing a pack with magnets included should buy this. The round magnets save time and money compared to sourcing them separately for prototypes.
Thin Profile Design
The small diameter allows installation in thin enclosures without visible switches.
Included Magnets
Having ten matching magnets means you can test and deploy all switches immediately.
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6. Gebildet 10pcs Plastic Reed Switch 3mm – Sturdier Switch Body
Gebildet 10pcs Plastic Reed Switch 3mm
3mm diameter body
100V max rating
Ten switches in pack
Wide temperature range
This version of the Gebildet kit offers a slightly larger 3mm diameter switch body. It holds a 4.4 rating for reliability and ease of handling compared to the thinner versions.
Pros
- Larger diameter for grip
- Strong electrical ratings
- Consistent performance
- Affordable bulk pack
- High insulation
Cons
- No magnets included
- Standard glass construction
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The 3mm size makes it easier to grip during installation without damaging the glass tube. The electrical specs match the thinner model with 100V max voltage and 0.5A current capacity.
Since magnets are not included you will need to source them separately for your project. This adds a small step but ensures you can choose magnets that match your specific mounting needs.
Electronics enthusiasts needing bulk switches for prototyping should buy this. The larger size reduces risk of breakage during soldering and handling.
Handling Ease
The increased diameter provides better surface area for holding while working on circuits.
Bulk Value
Ten units in a single pack offer great value for building multiple test circuits.
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7. Magnetic Reed Switch MRS087BLQ – Professional Industrial Mount Option
Magnetic Reed Switch MRS087BLQ
M8 male connector
6 to 24V range
LED indicator status
19mm band size
This MRS087BLQ switch features an M8 male connector for secure integration into control systems. It is designed for 6 to 24V DC applications and includes a built-in red LED indicator.
Pros
- Secure industrial connector
- Visual LED status feedback
- Wide voltage range
- Cylinder mounting band
- Reliable SPST form
Cons
- Higher price point
- Requires specific mounting
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The band size of 3/4 inch allows for straightforward mounting onto cylinders and actuators. This makes it ideal for industrial or mechanical projects where standard screw mounts are impractical.
The price reflects its industrial grade build and connector convenience. However you may need compatible cables to utilize the M8 connector fully in your setup.
Professionals needing a reliable industrial sensor should buy this. The LED indicator simplifies diagnostics when checking switch activation status.
Connector Convenience
The M8 connector eliminates messy wiring splices and ensures a secure connection.
Visual Diagnostics
The red LED lights up when the switch is activated providing clear visual feedback.
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8. LBY 3 Sets Magnetic Reed Switch – Practical Gap Alarm Solution
LBY 3 Sets Magnetic Reed Switch
5V to 24V compatible
ABS plastic shell
Includes screws pack
Personal alarm use
LBY offers three sets of magnetic switches in a plastic ABS shell compatible with 5V to 24V systems. It has a 4.4 rating for its use as personal gap alarms or door sensors.
Pros
- Compact dimensions
- Wide voltage support
- ABS shell durability
- Includes screws
- Versatile alarm use
Cons
- Black color only
- Plastic casing
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The dimensions are compact at 2.17 inches long which fits easily on most doors or cabinets. The material provides basic protection and includes all necessary screws for installation.
The black color is standard and may be visible on light surfaces. However the ABS shell is durable enough for indoor household use without issue.
Those needing a simple gap alarm for personal safety should buy this. The wide voltage support ensures it works with most alarm control boards.
Compact Fit
The slim profile ensures the sensor does not protrude visibly on small doors.
Versatile Voltage
Support for 5V to 24V allows connection to common battery or power systems.
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9. Reed Switch Magnetic Switches 20 Pack – Bulk Quantity Value
Reed Switch Magnetic Switches 20 Pack
Pack of twenty
Small device size
Ferrous materials
Non-contact operation
This pack offers twenty small reed switches for a low cost per unit. It is a solid choice for projects needing many sensors without individual packaging.
Pros
- Largest quantity pack
- Low cost per unit
- Basic reed operation
- Simple design
- Good for bulk projects
Cons
- Minimal product specs
- No mounting included
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The device relies on ferrous materials that pull together when exposed to a magnetic field. This non-contact operation provides a simple and reliable switching mechanism.
Because the listing provides minimal specs you should verify dimensions before bulk ordering. However for basic hobby use this offers a great way to stock up on switches.
Developers needing a stock of switches for prototyping should buy this. It provides a low risk way to source components for testing.
Bulk Availability
Having twenty units means you can build multiple setups without buying new packs.
Simple Operation
The basic design ensures it works with most standard magnetic sources.
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10. Gebildet 3 Sets NO/NC Black Magnetic – Recessed Hidden Window Option
Gebildet 3 Sets NO/NC Black Magnetic
Hidden window style
30cm cable length
No and NC wires
Includes stickers
This Gebildet set offers three hidden window contact reed switches with a recessed design. It has a 3.9 rating reflecting its specific niche for hidden installations.
Pros
- Recessed mounting style
- Longer cable length
- Dual contact wiring
- Includes mounting stickers
- Hidden appearance
Cons
- Lower rating than others
- Limited 30cm range
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The cable length of 30cm provides enough reach for most standard windows. The wiring supports both Normally Open and Normally Closed connections for flexibility.
The lower rating may stem from the complexity of recessed mounting or color visibility. However the included stickers simplify the process of fixing them to surfaces.
Those needing a hidden aesthetic for window security should buy this. The recessed style keeps sensors out of sight.
Hidden Aesthetic
The recessed design ensures the switch blends into the frame without protrusion.
Mounting Stickers
Included stickers help secure the sensors quickly without drilling holes.
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Buying Guide – How to Choose the Best Magnetic Switches for LED Lighting
Choosing the right magnetic switch depends on voltage, size, and mounting requirements for your LED project.
Voltage Compatibility
Ensure the switch rated voltage matches your LED power supply. Most products operate at 12V or 24V but some are limited to 3V for small projects.
Select a switch that can handle your supply voltage to prevent damage or failure.
Mounting Type
Decide whether you need exposed screw mounts or recessed hidden styles. Hidden options are better for aesthetics while exposed are easier to install.
Check if the package includes screws or adhesives for your specific surface material.
Contact Configuration
Choose between Normally Open or Normally Closed contacts based on your circuit logic. Some kits allow you to switch between modes freely.
Verify the wiring colors to ensure correct connection to your control board.
Switch Size
Measure the space available for the switch. Tiny 2.5mm models are best for compact enclosures while larger ABS ones suit walls.
The diameter affects both visibility and ease of handling during soldering.
Trigger Range
The distance between the magnet and switch affects performance. A wider range allows more flexibility in placement.
Check if the product lists the specific trigger gap for your window or door thickness.
Environmental Protection
For outdoor or humid areas look for waterproof models. This protects the internal contacts from moisture damage.
Standard plastic switches are best for dry indoor environments only.
Connector Type
Some industrial switches use M8 connectors for quick disconnects. Others use exposed wires for direct soldering.
Ensure your control system supports the connector type you choose.
Indicator Features
Switches with LEDs show activation status visually. This helps with debugging and setup checks.
Look for built-in LEDs if you need visual confirmation of the switch state.
How to Use and Care for Your Magnetic Switches for LED Lighting
Install the switch and magnet on opposite sides of the door or window. Ensure the gap matches the trigger range specified in the product data.
Connect the wires to your LED power supply or alarm system following the color codes for NC or NO contacts.
Test the setup by opening and closing the door. Check that the light turns on or off as expected.
Frequently Asked Questions
What voltage are most magnetic switches for LED lighting?
Most common models operate at 12V or 24V which matches standard LED drivers. Some specific project switches are limited to 3V for low power circuits. Always check the rated voltage on the packaging before connecting power to avoid damaging the switch.
Can I use these switches outdoors?
Only waterproof models are suitable for outdoor use. Standard plastic switches will fail if exposed to moisture. Look for keywords like waterproof or IP ratings in the product description to ensure weather resistance.
What is the difference between NC and NO?
Normally Open (NO) circuits close when the magnet is near while Normally Closed (NC) open. This determines whether your light turns on or off when a door opens. Choose based on your system logic requirements.
How far can the magnet be from the switch?
The trigger range usually falls between 10mm and 20mm. This gap is enough for most thin doors or cabinets. Check the specific product specs for the exact maximum distance allowed.
Do these switches need batteries?
No they rely on the magnetic field and external power for operation. The switch itself does not store energy so it needs a continuous connection to your LED power source.
Are these switches durable?
Yes reed switches are built for millions of operations. The plastic or ABS housing protects the fragile glass tube inside. Handle them carefully during installation to prevent breakage.
Final Thoughts on Choosing the Best Magnetic Switches for LED Lighting
The top picks include the Gebildet 3mm kit for budget, the waterproof closed/open model for reliability, and the M8 connector for industrial use.
Prioritize voltage compatibility and mounting style to ensure the switch fits your project without issues.
Always check current prices and availability since stock and costs change frequently on Amazon.