Homemade super bright mini LED flashlight 3W
LEDs today are embedded anywhere - in toys, lighters, household appliances, and even stationery. But the most useful invention with them is of course a flashlight. Most of them are autonomous and give a powerful glow from small batteries. With it you will not get lost in the dark, and when working in a dimly lit room, this tool is simply irreplaceable. Small copies of the most different LED-flashlights can be bought in almost any store. They are inexpensive, but the quality of assembly can sometimes not be happy. How do homemade devices that can be made on the basis of the most simple parts. It is interesting, informative and has a developing effect on lovers of making.Today we look at the next homemade product - LED flashlight, made literally from scrap parts. Their cost is not more than a few dollars, and the efficiency of the device is higher than that of many factory models.Interesting? Then do it with us.We take out the magnifying lenses for a while, now they will not be needed. On the back side of the cap on the superglue glue the radiator plate. Holes, grooves in the cap and the radiator must match.Contact us the LED and puddle the copper wiring. We protect the contacts with shrinking fluids, and heat them with a lighter. We insert an LED with wiring from the front of the cap.
The principle of operation of the deviceThis time the LED is connected to the battery only through a resistance of 3 Ohms. Since it contains a ready source of energy, it does not require a cumulative thyristor and a transistor for voltage distribution, as is the case with the eternal flashlight of Faraday. An electronic charging module is used to charge the battery. The tiny micromodule provides protection against power surges and prevents battery recharging. The device is charged from the USB connector, and there is a micro USB connector on the module itself.
Necessary partsFrom the tools you will need: a soldering iron with a flux, a glue gun, a drill, a lighter and a paint knife .
We assemble a powerful LED flashlight
Preparing an LED with lensesTake a plastic cap with lenses , and mark up the circumference of the radiator. It is needed to cool the LED. Mark the landing grooves, holes on the aluminum plate and cut out the radiator by marking.This can be done, for example, with a drill.
Processing the body of the flashlight from a syringeUnlocking the piston with the handle of the syringe, we don’t need them anymore. We cut the cone-blade with a painting knife. We clean completely face the syringe by making holes in it for the LED contacts of the flashlight. Fixing the lamp cap to the end surface of the syringe with any suitable glue, for example, epoxy resin or liquid nails. Do not forget to place the LED contacts inside the syringe.
Connecting the micro module for charging and batteryFor lithium battery fasten terminals from the contact Ktami, and insert into the body of the syringe. We pull up the copper contacts to clamp them with the battery case.
Date: 08.10.2018, 18:51 / Views: 94355
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