A light-emitting diode luminescence apparatus, comprising: a rectification circuit unit to receive an alternating current power voltage and rectify the alternating current power voltage to output a unidirectional ripple voltage; a plurality of LED units (13-1, ..., 13-N) connected in series, each of the plurality of LED units comprising an anode and a cathode, the plurality of LED units being configured to receive the unidirectional ripple voltage; a plurality of switch units (S1, ..., SN), one end of each being connected to the cathode of one of the plurality of LED units; a plurality of constant current control circuit units (15-1, ..., 15-N), one end of each being connected to an another end of a respective switch unit (S1, ..., SN) to receive a current from the respective switch unit (S1, ..., SN), each of the constant current control circuit units (15-1, ..., 15-N) being configured to output a current control signal to the respective switch unit (S1, ..., SN) to control a magnitude of the received current to have a specific value; and a current comparison unit to receive currents flowing from the plurality of switching units, and generate a plurality of switching control signals for the respective switch units (S1, ..., SN) to sequentially drive the plurality of constant current control circuit units (15-1, ..., 15-N), characterized in that the plurality of LED units (13-1, ..., 13-N) comprises a first LED unit to N-th LED unit (13-1,. ..., 13-N) and the first LED unit (13-1), which is connected to the rectification circuit unit and which is adapted, in operation, to start emitting light first, has the smallest forward voltage (Vf) compared to others. a rectification circuit unit to receive an alternating current power voltage and rectify the alternating current power voltage to output a unidirectional ripple voltage; a plurality of LED units (13-1, ..., 13-N) connected in series, each of the plurality of LED units comprising an anode and a cathode, the plurality of LED units being configured to receive the unidirectional ripple voltage; a plurality of switch units (S1, ..., SN), one end of each being connected to the cathode of one of the plurality of LED units; a plurality of constant current control circuit units (15-1, ..., 15-N), one end of each being connected to an another end of a respective switch unit (S1, ..., SN) to receive a current from the respective switch unit (S1, ..., SN), each of the constant current control circuit units (15-1, ..., 15-N) being configured to output a current control signal to the respective switch unit (S1, ..., SN) to control a magnitude of the received current to have a specific value; and a current comparison unit to receive currents flowing from the plurality of switching units, and generate a plurality of switching control signals for the respective switch units (S1, ..., SN) to sequentially drive the plurality of constant current control circuit units (15-1, ..., 15-N), characterized in that the plurality of LED units (13-1, ..., 13-N) comprises a first LED unit to N-th LED unit (13-1,. ..., 13-N) and the first LED unit (13-1), which is connected to the rectification circuit unit and which is adapted, in operation, to start emitting light first, has the smallest forward voltage (Vf) compared to others. <EOS>