LED Conversion of Magnifier Lamp

3,544

54

4

Introduction: LED Conversion of Magnifier Lamp

My Luxo magnifier light stopped working recently. It turned out to be a bad ballast. The light is a very expensive unit and has proved invaluable for lighting and magnifying various tasks in my shop. I needed to fix it, but unfortunately I could not find a replacement ballast. So I decided to convert it to LED lights. Here's how I did it.

Materials

  1. LED strip
  2. Power supply
  3. Foam tape
  4. Wire

Tools

  1. Soldering iron
  2. Solder
  3. Wire cutters/strippers
  4. Screwdriver
  5. Voltmeter

Step 1: Disassemble

First we need to take the lamp apart. Remove the light cover by removing any screws holding it on then remove the head of the lamp. Cut out the bad ballast and remove the fluorescent bulb base. Leave wire on the power switch. Be careful with the magnifying lens so as not to scratch it. Best to remove it and set it aside while you work.

Step 2: Add LEDs

Next we add the LEDs. I had a pack from Radio Shack (RIP) but there are cheaper options available online. I removed the silicone cover from the strip as it would not be needed. The strip is simply taped into the housing with foam tape. Unfortunately my strip was not flexible so I had to make relief cuts every section so it would follow the curve. You may be better off purchasing a flexible strip. Once the strip is in place, simply solder the cuts back together with some short lengths of bare wire. Finish by wiring the led strip to the original power switch.

Step 3: Add Power

Check the power requirements for your LEDs. Mine required 12 volts at 1.5 amps. I found a charger from an old Power Wheels in my pile of parts. Splice it into the original power cord of the lamp. Pay close attention to the polarity! Make sure the positive lead of your power supply ends up on the positive side of the LED strip. Use the voltmeter to confirm.

Step 4: Assemble and Enjoy!

Flip the switch and see that everything is working properly before reassembling everything. Your light should be as good as new.

It only cost me 30 bucks to save a $400 magnifier, not bad. I even ended up with about 18" of the LED strip left over for a future project. The light is just as bright as before, maybe brighter. You could even add a PWM controller to adjust the brightness.

Be the First to Share

    Recommendations

    • Puzzles Speed Challenge

      Puzzles Speed Challenge
    • CNC Contest 2020

      CNC Contest 2020
    • Secret Compartment Challenge

      Secret Compartment Challenge

    4 Discussions

    0
    Yonatan24
    Yonatan24

    4 years ago

    Awesome! Those $30 that you paid will save you a lot in the long run, all depends on how much you use it :)

    Now I regret taking apart the one that I found last summer (I think). I could have converted it, but I think the stand was broken too.

    0
    DylanD581
    DylanD581

    4 years ago

    I think it'should about time to convert mine. Do you embed the power supply in the top of the lamp? My lame has a 120v fluorescent bulb, so I would need to step down the power and embed it right near the magnifier.

    0
    entomophile
    entomophile

    Reply 4 years ago

    No, it is not embedded. I just cut the 120V cord and wired in the 12V power supply. Power supply sits on the floor like a laptop power supply.