Know that LEDs are the most economical light sources. They are a good alternative to incandescent or even fluorescent. Therefore, to save electricity you need to use such a semiconductor light elements.
If you have lying around the house after hours fluorescent lamp (can be working), I will tell you as quickly as possible without significant financial cost to manufacture extremely efficient led lamp which can be used, for example, as a night light.
Take out the glass tube, then we will get the ceiling of the 6 holes where further place respectively 6 LEDs that will fit together with the PCB in the housing of our lamps.
Schematic diagram of the led lamp is quite simple and does not contain expensive and difficult to source parts.
More clearly the electrical circuit can be represented as follows:
As a result, the printing fee is quite compact and fits easily into the case from the previous one, old and not energy-saving bulbs:
So here is we have a very attractive lamp, which will not only save energy, but also much longer run than its previous counterparts. With proper selection of circuit elements, a light source is practically eternal.
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Не подскажете ли Д.Медведеву “весомую альтернативу” утюгам накаливания и электрочайникам? А то он бедняжка мучается, как бы ещё побольше электроэнергии в Китай запродать, а холопы её безбожно на ерунду тратят…
Ну и всем увлекающимся “экономией электроэнергии”, могу посоветовать заранее начать подыскивать хорошего офтальмолога для своих детишек, растущих под мертвенным светом китайских ртутных ламп.
All the best!
Well for irons course there is an alternative
But at the expense of Chinese mercury lamps interesting. What are they unsafe? After all, steam is still not released in the environment.