These LED lamps replace their conventional incandescent lamps for the model building area. The topic of heat development is particularly important in houses / wagons. These LED lamps have almost no heat radiation due to the efficient LED variant. All of our LED lamps have installed a small circuit board in the base, where a bridge rectifier was installed with an optimal dimensioned LED resistance. So our LEDs are suitable for equal & alternating voltage, Work flicker -free & lights up even with incorrect reversal (important for analog DC mode, otherwise your locomotive is dark in one direction). Socket - Ba5s plug -in frame (2 nipples - rest noses on the side) Attention, the gallery photos shown above are only used for illustration, * Road lamps House lighting Facade lighting Local.