PUREX CHD / POOL STAR 70282 LIGHT BULB R40 Light Flood Lamp Bulb 120V 400W Bulb replacemet only PUREX CHD / POOL STAR 70282 Swimming Pool R40 120V 400W 500-watt, 120-volt Compatible Bulb Guaranteed to meet or Exceed Original Manufacturers Specifications Thicker filament and glass helps withstand heat. Multi-filament supports resist vibration, internal heat shield prevents separation, heat resistant cement assures no loose bases, brass base resists corrosion.