Light emitting element drive device and lighting device

A light emitting element drive device, comprising:

• a power input line to which electric power is supplied;
• an electric conduction switch that is provided along the power input line;
• a voltage generation unit that includes a semiconductor device and that generates a voltage containing a noise component when the electric power is supplied to the semiconductor device;
• a conversion processing unit that converts the detected voltage containing the noise component to a digital value;
• a data generation unit that generates data of a predetermined number of bits;
• and
• a control unit that turns ON the electric conduction switch, wherein
• the control unit determines a delay time based on the predetermined number of bits of the data, and the delay time corresponds to a time between supplying the electric power to the power input line and turning ON the electric conduction switch, and
• the control unit turns ON the electric conduction switch after the delay time passes.