Do not rush to throw away the energy-saving lamp. Encyclopedia of radio electronics and electrical engineering

Encyclopedia of radio electronics and electrical engineering / Lighting

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At home, I replaced incandescent lamps with an E27 base with energy-saving ones. During the year, out of twelve such lamps, four failed. It turned out that in all four burned-out lamps the electronic ballast was in good order, the gas-discharge tubes were out of order. Here the idea has matured to adapt this ballast to an ordinary cheap fluorescent fluorescent lamp.

After conducting an experiment, I was convinced that the lamp starts up perfectly, burns evenly and brightly. Immediately, a good use was found for her - to replace the often-burning lamp in the lamp at the door of the apartment in the stairwell.

To protect the electronics in the base of the disassembled energy-saving lamp from dust (Fig. 1), I made a plastic cover with a hole for it and brought four wires out of it to connect the lamp. Two more wires visible in the figure are temporary. With their help, the electronic ballast was connected to the network during the experiments.

I screwed the base into the socket of the driveway lamp. For the wires going to the fluorescent lamp, a hole was also drilled in the luminaire body. The wires passed through it do not interfere with the installation of the glass cover of the lamp. Thus, if the electronic ballast or fluorescent lamp deteriorates, the incandescent lamp can be temporarily returned to the luminaire.

A fluorescent lamp was installed above the door as shown in fig. 2.

If there are no standard connectors for it, the stripped ends of the connecting wires can be tightly wound around the lamp pins and closed with decorative covers, for example, from aerosol cans.

The whole job took me about an hour. A month later, the neighbors in the porch already had six similar structures. The example turned out to be contagious.

Author: O. Petrakov, Moscow

In energy-saving lamps, as a rule, the filaments burn out, and the electronic part (the so-called electronic ballast) remains intact. Such a lamp can be "revived" by connecting an ordinary fluorescent lamp with a power of 18 ... 30 W to the ballast. To do this, carefully open the housing of the faulty lamp by separating it with a knife into two parts. Having done it. Locate the two pairs of wires running from the PCB to the lamp's discharge tube. Unsolder these wires and in their place solder others long enough so that their other ends can be soldered to the leads of a standard fluorescent lamp.

Further, semicircular recesses with a radius equal to the radius of the bulb of a fluorescent lamp are made on the body from two diametrically opposite sides with a knife. Next to the recesses, stepping back about a centimeter, two holes are made with a heated awl.

The ballast board with soldered wires is covered with a round or square lid (depending on the shape of the energy-saving lamp body) with recesses for wires. It is convenient to cut the cover from thin non-foil fiberglass or from a used plastic card. The size of the cap should be such that it fits into the housing with little force.

After that, the body of the ballast is fixed with pieces of the mounting wire passed into the holes made in the middle of the fluorescent lamp, as shown in Fig. 3.

The wires taken out of the case, laying them along the lamp bulb and fixing them in several places with transparent adhesive tape, are soldered to the pins on the two ends of the lamp. On the ends you can put on, preheating, caps from plastic bottles.

The only drawback of the resulting lamp is that it can only be screwed into a cartridge, around which there is free space with a diameter not less than the length of the lamp used. Although, if you screw the cartridge onto the base of the lamp already fixed in the right place, this disadvantage can be overcome.

Author: A.Nichkov, Shadrine, Kurgan region.

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