UV Maglight




About: I love the TV shows Psych and Monk Bands Relient K and Anberlin destroying things making things swimming and having fun.

Here's how to transform a regular maglite into a UV maglite using a LED. This is a very easy Instructable and may cost only a few dollars.

Step 1: You Need...

~Needle nose pliers
~Wire cutters
~Mini MagLite
~1/4 in drill bit

Step 2: Disassemble

Disassemble the MagLite

Step 3: LED

Resise the led's leads with pliers and hands

Step 4: Drill

Drill the hole wider and make sure the LED fits through easily

Step 5: Reassemble

Insert the led into the holes and it doesn't work, switch the leads around. Then reassemble the light together.

Step 6: Now You Are




    • Classroom Science Contest

      Classroom Science Contest
    • Growing Beyond Earth Maker Contest

      Growing Beyond Earth Maker Contest
    • Planter Challenge

      Planter Challenge

    12 Discussions


    4 years ago

    I grabbed the led from my local radio shack and followe but the uv led seems to lack any real brightness, i have a standard mini mag led flashlight x2 AA

    Led are

    Wavelenght 405nm typ
    Viewing angle 20 degrees
    Fw current 20mA
    Fw supply 3.3V typical 4.0V max

    Any ideas to help would be great email me at oxstien@gmail.com or here i dont know if it will notify me of replies


    6 years ago on Introduction

    took me about 15-20 minutes to do this conversion, and it works great. My UV maglite will be a part of my toolbox now.. ready to spot leaks in the A/C

    Radio Shack has the UV LED. It is part #276-0014, and is in the LED parts bin. $1.99 for 2 LED bulbs.

    I would recommend that when you drill out the reflector, you do it with gradually larger bits until you get to the final bit size of 7/32, that way you avoid cracking the plastic reflector housing. Take care in not cutting the leads of the LED too short so that it will fit through the bulb mounting plate and into the flashlight terminal leads.


    Reply 9 years ago on Introduction

    UV light from usual UV leds is not good for killing germs. You can look it up on google, it's very hard to do a LED with the right frequency (deep uv) for killing germs, but once it is easily doable, it will make UV "cleaners" much more cheaper.


    Reply 10 years ago on Introduction

    Radio Shack
    High visibility, T-1 3/4 (5mm)
    Intensity: 280mcd (typical)
    Wavelength: 395nm (minimum), 410nm (maximum)
    Viewing angle: 30°
    FW current: 20mA;
    FW supply: 3.2 (typical), 3.8V (maximum)


    thanks for the link...but that LED has three leads....i'm not too familiar with electronics...which two should be used? I know a diode is a "one-way-valve" but with 3 leads i'm just confused.