Magnet Switch Lamp – Magnetic Toggle with Dimmer

Magnet Switch Lamp

A minimalist lamp with a magnetic twist.

This clean, modern desk lamp turns on only when the two magnetic ends of the hanging cable connect  creating a physical, satisfying switching action. Inside the base, the copper-colored dial isn't just a design accent: it's a smooth rotary dimmer that lets you adjust the light level with precision.

The warm light is provided by a COB LED strip embedded in the vertical arm, delivering even illumination without harsh shadows.

Key Features:

• Magnetic switch mechanism: the lamp only lights up when the magnetic ends are joined
• Integrated dimmer: control brightness via the copper front wheel
• Warm COB LED strip for soft, direct lighting
• Modern form with easy assembly and clean prints
• All components sourced from MakerWorld Maker Supplies
   

Assembly Guide
Required Parts (from Maker Supplies)

• M2×4 SHCS machine screw (10x)
• 300×1mm COB LED strip light (1x)
• 7mm round magnetic connector with SH1.0 (2x)
• Power distribution board (4-channel) (1x)
• Potentiometer board with SH1.0 connector (1x)
• 100mm wire pair with SH1.0 (5x)
• SH1.0 to SH1.0 connector adapter board (1x)
   

Step 1: Test the electronics before assembly

To avoid reassembly later, connect all electronic components and verify functionality:

Wiring overview:
 

Refer to the diagrams provided:

• Side 1:
  • Connect Potentiometer to the first port
  • Connect Magnetic Switch to the second port
• Side 2:
  • Connect COB LED to its port
  • Connect USB power to the power input

Once connected:

1. Plug in the USB power cable.
2. With the magnetic switch disconnected, the light should remain off. Make sure to insert a jumper cable at the other magnetic switch
3. Bring the magnet halves together — the light should turn on.
4. Turn the copper-colored dial (rotary potentiometer) to verify smooth dimming.

Step 2: Mount Electronics and Route the Magnet Cable

1. Potentiometer & Front Dial:
   • Mount the potentiometer board into its position behind the copper front dial.
   • Secure it with two M2×4 screws through the mounting holes.
   • Ensure the shaft aligns with the opening for the dimmer knob.
   • If needed, trim or slightly sand the knob for a snug press-fit.
2. Power Distribution Board:
   • Place the 4-channel power distribution board into its cavity in the base.
   • Fix it using screws and brass inserts if your model includes them.
   • Connect the potentiometer using a SH1.0 cable to the right port of the input ports.
3. Connector Adapter (SH1.0 Extension):
   • If your cables are only 100 mm, use the SH1.0 to SH1.0 adapter board to bridge the connection.
   • You can either:
     • Glue the adapter board to the inside wall of the base (as shown), or
     • Use a 200 mm cable instead, if available (more elegant, but depends on cost/availability).
4. Magnetic Switch Cable:
   • Route the cable for the magnetic connector through the small side hole in the base.
   • Once threaded, glue the hole with the provided 3D printed cable collar for a clean exit and strain relief.
5. Cable Management:
   • Twist cables loosely to reduce clutter and avoid sharp bends.
   • Keep wiring flat against internal walls to ensure the bottom cover closes cleanly.

tep 3: Install the COB LED Strip

1. Insert the COB strip:
   • Carefully press the 300×1 mm COB LED strip into the vertical groove of the lamp arm.
   • The strip should sit flush and straight. Avoid bending or twisting the LED strip.
2. Route and connect the LED cable:
   • Connect the LED wires to the controller board (as shown in the image).
   • Secure the LED cable inside the LED housing using the provided recess or clamp feature.
3. Connect to power distribution:
   • Plug the LED connector from the controller board into the right of the output ports of the power distribution board.

Step 4: Assemble Top Housing and Magnetic Switch

1. Top cable feed:
   • Insert one end of a 100 mm SH1.0 cable into the hole at the top of the lamp arm.
   • Close off the top with the printed cable exit cover and secure it with two M2 screws.
2. Magnet switch wiring:
   • Thread both cables (from the top and from the base) through the lower magnet half shell.
   • Use the small 3D printed cable collar to hold the cables in place — glue if needed.
   • Attach the magnetic switch board to the cables (polarity doesn't matter with most reed-based switches).
3. Final magnet cover assembly:
   • Secure the magnetic switch PCB into the upper magnet cover. The upper one needs to connected to a jumper cable
   • Carefully screw both magnet halves together with M2 screws.
   • The cable should remain gently twisted and untensioned between the upper and lower shell.

Step 5: Final Assembly – Closing the Lamp

1. Secure the lamp arm:
   • Insert the lamp arm into the base.
2. Close the bottom cover:
   • Carefully fit the bottom cover over the base, ensuring that no cables are in the way.
   • Use M2×4 screws to fully close the lamp.
3. Power it up:
   • Plug in the USB power.
   • Join the magnetic ends to turn on the light.
   • Rotate the copper front dial to dim or brighten.