i need a delay timer????

I need a delay timer for a 1000w hps, so when the power is interrupted for a second and the lamp goes dark; the ballast shuts off for a 5 minute delay before it attempts a refire. Instead of having the igniter continuously firing at the bulb, damaging it.



What is available for delay restarting a 1000w hps on 240v when you have power interruptions?