Sign board, and a light emitting diode assembly for sign boards

A refinement of the body portion of the road sign board, without the need for modification, to improve the light source member attached thereto, overheating, so that there is no risk of fire, dramatically the useful numeration of the light source member with extending (3 times), saving dramatically (approximately 1/10) power consumption. The A in the LED holder with a matching cap to standard products bulb socket accommodates the light-emitting diode (LED) and the voltage-current control circuit, filled with waterproof insulating seal member in the space between these members to. The light emitting diode assembly configured to have a compatibility with conventional incandescent bulbs (not shown). Furthermore, the present invention is the above-mentioned current limiting circuit, constitute a rectifier circuit 9c, a current limiting reactance 9e, by the discharge resistor 9f connected in parallel with said current limiting reactance, overheating, risk of fire the lost. .FIELD 1