As I wrote, one transformer for halogen lamps, where the power tubes is large enough to periodically burn out. Blown it again some time ago. Вобщем had to go and buy a new one. Interestingly, in our shops other step-down transformers are not brand Taschibra I have not seen, so had to buy the same as was. Why do I need to start down transformer voltage from 220 volts to 12? Well, if science is not known 
For there is a lamp and a 220 volt, so the special advantages of using step-down transformer 12c is not achieved. Is there really a feature - a low voltage. In circumstances where there is no confidence in the safety wiring, lushe use than 12v 220v because if you hit the 220 - will be much more unpleasant than if it will be 12
We have a home security is also not in last place, so in addition to the lower transformer we have made a special box with a lower transformer. However, I have a suspicion that because of the weak ventilation in the hold and is overheating transformer. Because the radiator cooling power switches in a transformer is the shell of a thin metal plate that is not good. Theoretically, there should be a big heat sink and fan, but something such transformers can not see it in stock. Although, if we consider that this low-power transformers, it is assumed that the transformer load is small, and they would not get warm, which actually is not always so. We could certainly use household voltage step-down transformer, a large box - but alas, it is not practical for a few halogen lamps in the room to keep the power supply with a small box
Electronic transformer for low voltage halogen lamps TASCHIBRA
Manufacturer: Feron company
Specifications of the transformer:
Input voltage: 220 volts, 50/60 Hz
Output voltage: 12 volts
Power: 100W-200W (Max)
Granted, their reliability is poor. They do not like heat. What's the margin? And ahead of the summer, and used to sitting, and an air conditioner is off-blockage. Well, the truth is not only a problem of transformers, unfortunately.
Dear, Alex! Article you wrote nuzhnuyu.No to all appearances, that you with electricity on you. "Step-down transformers for the 12 volts needed for the security and put them in our apartments in bathrooms and kitchens, that is where there is moisture. And what would the transformer worked faithfully for a long time it must be chosen with a small reserve of power, especially China ... They are for the entire electrical overestimate the technical parameters (write 200WT but in reality 180-190WT)
YuriyK why you made such conclusions about the fact that the electricity I'm on you? I know exactly what they need for security in humidity, so in the usual room, but not the bath, I want to put lights at 220 volts. And about the Chinese Watts I, too, in the course, but this does not help, because that's just recently again burnt transformer on nominal 150W, max 200W, with a load of only 80 watts ...
Distinguished experts where this damn box tie 220 volts or no instruction on it is not drawn
HELENA, 220 must be connected to the black wire, which are signed "IN"
Good day (or night), read reviews here, and
would like to ask, can any living creature knows whether
him hang
Chip LED (1210 UWC) white (3.0 - 3.6 V)
(Here is the problem - very dim light (soldered one by one (sequentially) 12 - (1 +1 +1 +1) +12
, Hung an LED (light and vshoke also not too bright) 12 against 3V (What's wrong?)
I would like to know what amperage output? in amperes
Thanks in advance
Good day Alex!
If possible, please answer, interested in the scheme of the transformer, and if there is - method of determining a faulty element in this scheme. Sincerely, Igor!
PS please send a response to E-mail
Transformers Toshibra. Worse is the only Starlight! They markups below body melt. In tshibry body of metal, so much as it burns. But the smell is excellent :-)) Protection against drops - 0! Regarding the values of power, so it's true. Written 250, really load 170-180.
Hey, why for galogenok transformer with a diode rectifier?? (You called them his key) Make your usual toroidal transformer, bought at the radio market and forget about the problem))) but of course with a margin of one and a half times the power, then it just will not warm up))) and efficiency at the torus is the largest of the transformer)) )
what the realties blocking oscillator circuits cloud above the frequency of 20-100 kHz
and transistors to hold up to 100
blocking oscillator, transistors 100-150 degrees temeratura well, and all
Colleagues in distress! Please tell me that's such a thing. a transformer Taschibra there or not a smooth function of a bulb? rummaged through many sites to find the answer.
Igor, I hardly think ... If it was, the package would be this would be a lot of labels ...
Oh, sobbsno for this and Google
/ / 220 should be connected to the black wire, which are signed "IN" / /
Yeah, if I had these letters were there.
I have a box on either IN, or 12 is not ...
the black means.
senks.
Fiction? Not included crust. light! rung circuit windings (trance Brands TE - 12,167) 220 (do not call) and 12B (call). I make a conclusion: not ispraven.Kupil Toshiba, calling-the same thing! What's the matter, which poured kerosene?
black provodochka the transformer 2, and the cord 220 - 1. They should combine all three together or what? A land where?
Tanya, you are in the socket 220 had long looked? There seems to be two wires rather than one
Here are two black wires and the socket must contain. If you have only one wire is 220 - this phase, then connect it to one black wire, and the second black wire will have on the ground to throw, or to the battery 
on soundlights this transformer will if lights on the 12 volt 3 pcs
asdk74, and may well come up, try to maybe get
Alex.
When connecting the four lamps from 50 W to the transformer there is such a phenomenon. The first lamp burns brightly, tusknee second, third and even less so
And this at a distance of 3m wire 2.5 mm.kv
The losses in the wire? Hardly?
Does not provide power transformer?
Taschibra power max 250W
trance sucks) is shorter there is no safety. transistors though powerful, but almost no heat sink. bolted through the cardboard to the body! Well, what was so heat transfer!? I advise this is what to do: there is an input resistor, Duck put it into 3 ohm 2W (is weak and at 1 ohm) and after the diode bridge, immediately to the legs of the diodes soldered capacitor (10Mf 400v - \ + not to be confused) Well, some of these limits. To smooth the ripple after rectification. transistors themselves will feel much better. and the transistors themselves to sit on small heat sinks 4-6 cm2 (separately or in any way to close, as to them half the supply voltage. if something gets, does not seem little. that's only after the alteration of "transformer" will regularly serve. lumiere to advise for each bulb to the transformer.. sorry for the many bukavok. broke =) (after this alteration is placed in housing with prostornenky dyrdochkami ventilation and oplya, it works! (for workaholics: you can put a small fan through a resistor to make noise there will be no not overheat in the summer)
crym, honestly do not know exactly, but perhaps not enough power. max power is not likely given a long time, it is often the peak value, and focus more on the minimum value of the power transformer ...
Alexander Dj, thanks for the nice comment
Incidentally, I deciphered that I have burned, and saw that transistors do not have heaters, but handy небыло, and go to the store was too lazy. I put the fan, but that what I had been to DC, and colorful puffed when connected, even though I connected the WMS is not there 
Please tell us are connected bulbs galogenok 15 to 10 watts of the first 3 shines dimly and the last remaining barely grryat transformer, 210 watt tashibra what is it? transformer or? may not have enough power? When pulling a light bulb or two of those others begin to burn a little bit brighter? thanks for the reply
Good day Alex!
If possible, please answer, interested in the scheme to connect the transformer feron et200W
Please tell us are connected bulbs galogenok 14 to 10 watts of the first 3 shines dimly and the last remaining barely grryat transformer, 210 watt tashibra what is it? transformer or? may not have enough power? When pulling a light bulb or two of those others begin to burn a little bit brighter? thanks for the reply
Electronic Transformer - not the absolute analogue of copper. Do not forget about it.
At lumiere place will not work. to trans worked, there must always connected load. No load voltage at the output - Zero. And how do you control thyristor in the light-music, if the cathode and the anode without signal zero volts?
Besides it is written on the body of 100-200 W (for 200 pound trance). If you turn on a light bulb 50 watts, then the scheme will not start. And in the light-music is constantly changing the applied power. So what about lumiere forget.
Regarding the findings, if there is no notation on the case. A thin wire - is 220, more thick (for 200 W is much thicker) - this is 12 V.
Someone has rejected a transformer, because unable to measure the voltage at the output. Firstly there is no load voltage not at all, and secondly to measure the usual voltmeter will not work, because there is a high-frequency ripple. Connect the oscilloscope and see (when loaded).
# KALINA: February 26th, 2010 at 10:44
Please tell us are connected bulbs galogenok 15 to 10 watts of the first 3 shines dimly and the last remaining barely grryat transformer, 210 watt tashibra what is it? transformer or? may not have enough power? When pulling a light bulb or two of those others begin to burn a little bit brighter? thanks for the reply
Try thicker the wire, since the frequency conversion in kHz, the losses in the wires is much higher. Or the wire is shorter.