Electric current indicating lamp

The utility model relates to an electric current indicating lamp. The indicating lamp (light-emitting element) is connected to a monitored load circuit in series, comprising the load circuit, a casing and the control circuit of the electric current indicating lamp installed in the casing. The control circuit is that the current circuit of the load circuit is connected with a power transmitting transformer BD in series, and the power transmitting transformer BD is connected with a bridge rectifying circuit DZ of which the output end is connected with an A point and a B point between which a light-emitting indicating branch circuit (1) or a current voltage-stabilizing branch circuit is connected in parallel and an operating condition information transferring branch circuit (3) can also be connected. The indicating lamp of the low power current can not use the transformer, and the indicating lamp of the direct-current power supply can not use the rectifying circuit. The utility model can directly monitor the load working condition of the circuit of the single electric apparatus and also transfer the working condition of the single electric apparatus in a remote distance.