DIY Halogen Bulb Night Light with a Warm Glow

If you want a small night light with a soft, warm glow and happen to have a few halogen bulbs lying around, you can repurpose them into a cozy bedside lamp. By pairing the bulbs with an electronic transformer, you can achieve just the right brightness, making the lamp ideal for your bedroom.

This halogen bulb features a plug-in design and comes with its own socket.

12V 5W specifications

Take an electronic ballast, open its housing, and remove the internal PCB.

Pay attention to the inductor coil on the board.

Make sure you provide proper insulation during the subsequent assembly.

If you have an unused Ethernet cable lying around, strip off its outer sheath and remove the internal wires.

Take a wire and start winding it around the coil.

Here is what it looks like after 10 turns.

Short-circuit one end of the lamp tube so that the ballast can form a complete circuit.

Connect the halogen bulb to both ends of the newly wound coil. Test it by powering it on without reinstalling the housing to check whether it works properly.

Find an unused earphone storage case to use as the enclosure, and place the halogen bulb inside.

Connect a power cable, secure the power board in a safe location, and install the lamp beside your bed.

Here is the night light in action. It creates a wonderfully warm and cozy atmosphere. Since the power supply voltage is relatively low, the light is not too bright, making it suitable for nighttime use.