I really need your expertise here guys.
I bought this ballast (250 Watt High Pressure Sodium Ballast - 120, 208, 240 & 277 Volt - Sola # E-971-W-SO250 Light Bulb) and bulb (250 Watt - High Pressure Sodium - 2100K - Clear - LU250/ECO - Sylvania #67578 Light Bulb) about a month ago. I was going...