2pcs Hand Crank Supercapacitor & Super Efficiency Joule Thief AA 1.5volt

ELEMAN by George Chaniotakis

$99.99

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A big hello to all mankind! Visit my youtube channel to 
and find various interesting things on Electrical ~ Mechanical and Electronic ~ Technology...
 
Buying one helps my research tremendously,
 helping me get all the supplies I need for the future.
 
Two Amazing products!
 
With New Prototype circuit which has a very high efficient JOULE THIEF based circuit.
One is with battery
It has the capability to drain all the remaing energy of used AA batteries.
It is able to power the 10mm Led for a long long time.
The  power concumption ranges from 0.003mA to 0.012mA & the voltage from 0.25mV to 1.5Volt.
It is adjustable in brightness via a potentiometer to meet your personal needs.
 
Ηow to operate it
 
There is a "green" power potentiometer rotary switch. To operate the device and 
to increase the intensity of the Led! 
 
Use all your old ΑΑ batteries to discharge them completely and 
you will have light in times of emergency...
 
 
 
Second with Hand Crank!
 
It has a Supercapacitor and it can light for over 30 minutes with only 35 seconds!
of hand charge to power the 10mm super bright Led.
The power consumption ranges from 0.003mA to 0.025mA & the voltage from 0.25mV to 2.7volt.
It is adjustable in brightness via a potentiometer to meet your personal needs.
 
Ηow to operate it
 
There is a "green" potentiometer is to increase the intensity of the Led! 
and the blue crank is to turn and charge the super capacitor.
 
 
A joule thief is a minimalist Armstrong self-oscillating voltage booster that is small, 
low-cost, and easy to build, typically used for driving light loads.
It can use nearly all of the energy in a single-cell electric battery, 
even far below the voltage where other circuits consider the battery fully discharged; 
hence the name, which suggests the notion that the circuit is
 stealing energy or "joules" from the source. 
The term is a pun on the expression "jewel thief": one who steals jewelry or gemstones.
 
NOTE
 
Maybe there are small differences in electronic components 
and materials (like bigger batteries etc) due to device enhancement for the buyer's benefit!
 
 
Shipping
 
Registered International Shipping
 
The device or the item that I send you I make sure it is well protected during the shipping mission.
Delivery
 
Ships within 1 to 3 business days after payment is confirmed
 
Returns
 
I do not accept a returns because all devices or the items are tested and are in perfect condition before shipping.
 
Contact 
 
If you have any problems please contact me with your comments, questions or suggestions
by leaving me an message
 
Leave positive feedback
 
If you are satisfied with my items, it would be appreciated if you leave me a positive feedback and a 5 stars rating, 
this is very encouraging for me!
 
Thanks
 ~ ELEMAN ~
  • Availability: 1 In Stock
  • Model: 2022

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