Emergency lamp for 15 hours of operation

Country and country life is full of unexpected surprises. Either the gas would be turned off, or the water would be cut off, and then the electricity suddenly disappeared somewhere. A self-contained LED lamp, which anyone can make at home, will help brighten up a dull and boring pastime.
Emergency lamp for 15 hours of operation

Of course, this option is unlikely to be suitable as a source of main lighting. However, it also has a number of undeniable advantages:
  • Bright glow;
  • Long service life LED – about 50,000 hours;
  • Wide lighting angle – 120°;
  • Convenient metal holder that allows you to set the desired lighting angle;
  • No heating of the case and protective glass;
  • Minimum power consumption.

Modern LED floodlights are lightweight, unpretentious to dust, shock and even waterproof. Their metal body is reliably protected from corrosion by anodized or chrome-plated coating. They are often used to illuminate buildings, architectural monuments, and billboards. Well, in the household such a thing is simply irreplaceable, and you will see this now.

Required Parts


To make an autonomous LED lamp we will need:

Let's get started


First of all, we combine our batteries into a separate block of 12 pieces. You should have 3 rows of 4 batteries each. We set the outer rows with the anodes (+) up, the middle row with the cathodes (-) up. The batteries should fit into plastic holders, and a block like this should be organized.
Emergency lamp for 15 hours of operation

Next, you need to take a metal bus and solder the anode and cathode contacts in series on both sides of the block. Resistance welding is ideal in this case, but solder and flux are also suitable for this type of work. On one side, the ends of the metal bus at the outer rows must be left a few centimeters to work with the protective board, and the rest must be cut off.
Connection diagram to the controller.
Emergency lamp for 15 hours of operation

Emergency lamp for 15 hours of operation

The middle row is also soldered according to the diagram shown on the protective board. Having cut the bus contacts to size, we solder the protective stabilizer board in place.
Emergency lamp for 15 hours of operation

Emergency lamp for 15 hours of operation

We make the second block completely by analogy with the first.
Emergency lamp for 15 hours of operation

To secure the electrical part of our device, we need a case from a non-working power supply of a desktop computer. We disassemble it, completely freeing it from the filling.
Emergency lamp for 15 hours of operation

We insulate our blocks with insulating tape, leaving the connection contacts exposed, and use double tape to connect them to each other, mounting them to the device body.
Emergency lamp for 15 hours of operation

We mount a four-way switch into the case on the side of the power socket, and on the reverse side there are mating connectors for the adapter, connecting the outgoing ends of the protective boards and the contacts of the connectors with wires.
Emergency lamp for 15 hours of operation

We connect the adapter to the connector and check the functionality of our charger. One of the contacts, for example, the anode, is connected through a switch, the second is connected directly to the spotlight.
Emergency lamp for 15 hours of operation

We mark the mount of our spotlight on the power supply housing. The holes can be made with a drill and a drill bit of a suitable diameter, securing the lamp with bolts.
Emergency lamp for 15 hours of operation

We check our device and assemble the body together with bolts.
Emergency lamp for 15 hours of operation

So, with minimal investment and from old spare parts lying around in the pantry or on the balcony, you can assemble an excellent lamp that will help out if there is no electricity in the country house, in a country house or even in your own apartment.

Watch the video instructions for making the lamp


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Comments (2)
  1. Alexey Ivanovich
    #1 Alexey Ivanovich Guests 11 March 2018 19:03
    0
    When will there be publications of devices based on Russian (domestic) components?
  2. Guest Sergey
    #2 Guest Sergey Guests 24 June 2018 19:35
    0
    The emergency light should turn on automatically.