The Nifty-Stuff LED Boost Circuit / Joule Thief is a device designed for two purposes:
1) To suck any and all traces of juice from your “dead” batteries.
2) To light an LED, with a voltage requirement of higher than 1.5 volts, off of a single 1.5 volt (or less) battery! For example, run a white […]
Popularity: 15% [?]
I’ve had a lot of fun making up many different versions / modifications of these tap lights (also called touch lights, push lights, closet lights). Over the months I’ve received requests to make custom modified LED tap lights.
I noticed that on the net there aren’t many options available for LED Tap Lights or an […]
Popularity: 15% [?]
Led’s are a great solution when replacing incandescent bulbs in many applications. One problem is that LED’s don’t like changes in voltage & current. For example, the voltage from a car battery can fluctuate quite a bit from 11 - 14 volts and this can be a big problem for an LED. If you design […]
Popularity: 20% [?]
This was actually one of the first LED conversions that I did, but I never posted it because I’ve been wanting to re-do it to make it nice and pretty. The problem is that it works so well that I haven’t been pressed to make any changes. This being the case I’m posting the modification […]
Popularity: 10% [?]
In addition to the LED tap lights I’ve made, I’ve also received requests for some custom LED lighting applications. I usually use bright white LEDs or the bright blue LEDs for these projects but have many other colors to choose from.
For most of these applications a very special circuit was designed to run the LEDs […]
Popularity: 13% [?]
There are a TON of LED flashlights out there, but this one is my favorite: The Dorcy AAA LED Flashlight
Here are my criteria in rating this flashlight:
Price
Battery Type
Runtime
Brightness
The price is a major factor to me because I have a habit of either loosing, braking, or giving away flashlights.
Battery type is super important because I want […]
Popularity: 21% [?]
Buy Pre-Made Tap Lights Here
PROBLEM: The Mini Tap Light puts out too little light and drains too much juice!
SOLUTION: Replace the crappy little excuse for a bulb with EIGHT bright LEDs.
MATERIALS:
4 - bright white 3mm LED’s: 3mm, 3.3V, 30mA
4 - bright blue 3mm LED’s: 3mm, 3.3V, 30mA
1 - Mini Tap Light
8- 20 ohm resistor. […]
Popularity: 10% [?]
I wanted to do a conversion / modification of the flashight I found at the Dollar Tree. I based my mod on this page:
http://lambda10.tripod.com/8led.htm
MATERIALS:
8 - bright White 5mm LEDs:
1 - Dollar Tree 4 - AA Flashlight
8 - 30 ohm resistor.
Misc. wires, solder, etc.
Here is the flashlight prior to the mod.
Here are the […]
Popularity: 9% [?]
In July 2003 I bought about 120 LEDs and have since been converting everything I can get my hands on. I’m not an electronics buff, but I love to tinker. Below are the very first mods I made:
The LEDs that I work with are the standard bright white or blue LEDs, the specs are:
MCD […]
Popularity: 10% [?]
Before and After
PROBLEM: The wife needs a night light next to the changing table.
SOLUTION: Convert a fan to a light. (I know, I could have just bought a night light, but this was fun!)
MATERIALS:
6 - bright white 3mm LED’s: 3mm, 3.3V, 30mA
1 - Portable Fan from the dollar store
2 - 10 ohm resistor.
1 […]
Popularity: 7% [?]