Lamp strip driven by constant-current power supply and lamp

The invention discloses a lamp strip driven by a constant-current power supply and a lamp, and belongs to the technical field of constant-voltage input lamps. The lamp strip comprises an LED constant-current power supply and a lamp strip, wherein the LED constant-current power supply is connected with voltage input, and the LED constant-current power supply outputs constant current to the lamp strip. According to the lamp strip and the lamp driven by the constant-current power supply, a power conversion module outputs corresponding current according to the control signal, the current of the LED is kept unchanged and the LED is changed at will under different LED conditions, and the circuit directly drives the LED through the LED constant-current power supply, so that a constant-current circuit in a single LED is reduced, the photoelectric conversion efficiency is greatly improved, the heat of the lamp is reduced, a constant-current loss circuit in a direct-current lamp is canceled, the constant current of eac