Multi-LED Joule Thief.

Name: Multi-LED Joule Thief.
SKU: 10418
Price: 5.89 USD
Availability: Discontinued
Rating: 4.62 (2 reviews)

(2 Reviews)

A fully assembled light with bright cool white LEDs that run on a AA battery for hours.

Designed by Perry Leumas in United States of America

Product Retired

This product is no longer available for sale.

The seller may be offering an improved version or it may be hanging out on the beach, enjoying the retired life.

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A fully assembled light with bright cool white LEDs that run on a AA battery for hours.

Check out V2 of the Multi-LED Joule Thief here. This Multi-LED joule thief is designed to drain that little extra bit of power from your used batteries while providing usable light. This circuit is b…

Check out V2 of the Multi-LED Joule Thief here.

This Multi-LED joule thief is designed to drain that little extra bit of power from your used batteries while providing usable light. This circuit is based of the popular joule thief circuit found throughout the DIY electronics community but with more LEDs.

Multi-LED Joule Thief Features

Fully assembled
Integrated AA battery holder
Power switch, just rotate the green plastic tab on the positive end of the battery
17 3mm white LEDs
Days of continuous light from used batteries
Dimensions: 2.12"L x 0.55"W x 0.91"H

AA battery not included

Review Breakdown

Average Ratings

Product: (5.00)

Documentation: (4.00)

Shipping: (4.50)

Communication: (5.00)

Patrick | Oct. 21, 2017

Great little device

This is an excellent joule thief device at an unbeatable price. Assembled professionally with a neato 3D printed power switch tab. VERY bright! With a little fiddling, it also works with AAA batteries. Seller was frendly and informative. Highly recommended.

Dillon | Sept. 29, 2017

Fun circuit that works great!

Such a great idea for a circuit and the size being the same as a single battery is perfect. Love that it works using only 3 external components. The 17 LEDs are very bright which is surprising given that the battery powering it would typically be thrown away. The 3D-printed power switch is also very clever and a wonderful addition. I bought two and placed them on the nightstands on each side of the bed and could easily buy a bunch more and leave them around the house for when I need them. Excellent product!