Back Home / Electrical / Lighting - Industrial / BULB – ROUGH SERVICE 75 WATT – SILICONE COATED BULB – ROUGH SERVICE 75 WATT – SILICONE COATED SKU: RSB75C Categories: Electrical, Lighting - Industrial Incandescent rough service bulbs. Commercial grade quality. 130 volts. A-19 medium screw base. Inside frost. 2500 hour average life. Vibration resistant. 75 watt rating. Silicone coated. Incandescent rough service bulbs. Commercial grade quality. 130 volts. A-19 medium screw base. Inside frost. 2500 hour average life. Vibration resista Case Quantity: 2 Log In For Pricing