Replacement Light Bulb for PHILIPS C400S51/ALTO NC - 400W 100V E39 Base

Replacement for PHILIPS C400S51/ALTO NC fixtures in industrial and commercial settings, this sodium bulb operates at 100V and 400W with an ET18 shape. It delivers 50000 lumens while drawing 4 amps through an E39 base and maintains output across a 30000 hour rated life.

Key Features & Benefits

• Operates at 100 volts and 400 watts for consistent power draw
• Produces 50000 lumens in ET18 shape configuration
• Rated for 30000 hours of operation at 4 amps
• E39 mogul screw base fits listed fixtures

Product Specifications

• Volts: 100
• Watts: 400
• Shape: ET18
• Lumens: 50000
• Life: 30000 hours
• AMPS: 4
• Base: E39 MOGUL SCREW BASE 39MM DIAMETER (E40)

Compatible with fixtures requiring C400S51/ALTO NC equivalent HID sodium bulbs in industrial, commercial, and outdoor lighting systems.

Discover the Perfect Replacement

Confirm your fixture requirements and select this bulb to restore proper lighting performance in your existing setup.

During the checkout process, you can choose from expedited services such as overnight delivery to standard ground shipping. We aim to ensure your order is delivered promptly and reliably, wherever you are.

All returns must be made within 30 days of purchase with the invoice. (After 30 days, Interlight credit only, Minimum 25% restocking fee, no returns after 60 days, special items order just for you are not returnable.)

At Interlight, your satisfaction is our priority. We offer a 30-day money-back guarantee on eligible products, provided they are returned in resalable condition with the original invoice.