The Cir-Kit Concepts' voltage regulator is a remarkable and innovative device which will greatly extend the life expectancy of any 12-volt bulb. The most significant restriction to long bulb life is the presence of excessive operating voltages. A relatively small increase in voltage may reduce a bulb's life by a factor of ten or more. Most commercial transformers start with a higher voltage at no load and typically provide the stated output voltage when supplying the rated output wattage. As would be experienced with any similar transformer, the Cir-Kit Concepts' transformers present voltages between 13 and 14 volts when lightly loaded. Only when loaded with ten or more bulbs can an acceptable output voltage be realized. To obtain this voltage when using 1 to 9 bulbs, a device such as the Cir-Kit Concepts' voltage regulator is recommended. This unique device automatically changes value as bulbs are added or subtracted from the system, thus maintaining a proper voltage across the connected bulbs. The automatic regulation feature allows this one simple device to take the place of several discrete resistors which would otherwise be required to obtain similar results. Equipped with terminal connectors, the lead-wire need not be cut as before. Detailed instructions included.
Use only on 12 volt AC transformers

Cir-Kit Concepts accounts for nearly all the dollhouse wiring kits sold worldwide. We are proud to offer their fine products including: dollhouse lighting fixtures, wiring instructions, tape wire, miniature outlets, miniature plugs, miniature switches, dollhouse Christmas lights, dollhouse light bulbs, and miniature electrical products.