Check power supply
Tnx by BEBI ... :thum:
Switch off power supply from the mains, connect the light bulb turn indicators or stop lamps 21W 12V car, no less and no more, turn on the power supply and within 1 sec. must be full glow lamp will turn on without blinking, if it does not turn on or start flashing bulbs or LEDs if this version has the power, then are dried in the power supply and electrolytes should be replaced.
Tnx by BEBI ... :thum: