Packaged 4 bulbs to a pack---50,000 hour. High intensity (brightness) LED draws 30 ma of current. Available in pure white only; 12 volts; DC only. There are three lower intensity screw-base LEDs that are closer in candle power to that of the incandescent flame-tip bulb: Warm White (closest to incandescent); Pure White and Flickering. Each of these draws only 5 ma of current and will last far longer than 50,000 hours. Now you can replace your old screw base bulbs with a 50,000 plus hour LED.
I have made available replacement Led screw base bulbs for the three most common screw base bulbs in miniatures: The Flame-tip; the Candle base; and the Pea bulb. These replacement bulbs are now available in a lower brightness level closer to that of the original incandescent bulb and in both pure white and warm white and at 12 volts DC. Each new LED bulb is specially made to illuminate a full 360 degrees looking very similar to the bulb it is replacing. These LEDs work only on 12 volts DC and thus have a polarity that has to be met. The threaded sides of the base are the negative contact and the bottom tip is your positive contact. For a new lamp being put into your dollhouse you can simply replace all of the incandescent bulbs with the new LEDs. When you connect it to the dollhouse 12-volt DC circuit you may need to reverse the two leads in order for the light to work. If the lamp has a plug, simply reverse the direction you are plugging it into the wall outlet and the lamp will work. For light fixtures already hardwired into your dollhouse, you have a 50/50 chance that when you replace the bulb it will simply work. If not, you might try flopping the two wires connected to the DC power source.