Product Overview
Philips C400S51/ALTO Son Ceramalux 400W High Pressure Sodium ED18 Clear Lamp
Technical Specifications
- Order Code: 467373 (C400S51/ALTO)
- Wattage: 401.5 W
- Luminous Efficacy: 125 lm/W
- Color Temperature: 2100K (Warm White)
- Color Rendering Index (CRI): 20
- Base Type: E39 Single Contact Mogul Screw
- Bulb Shape: ED18 (Hard Glass)
- Bulb Finish: Clear
- Operating Position: Universal (Any or Universal (U))
- ANSI Code: S51
- Mercury (Hg) Content: 23.5 mg (Max)
Product Highlights & Applications
Ideal for industrial applications, warehouses, parking lots, and post top applications[cite: 48].
- ALTO® Technology: Passes EPA TCLP test for non-hazardous materials.
- Energy Efficient: High efficacy of 125 lm/W for lower operating costs.
- Universal Burn: Can be operated in any position without performance loss.
Safety & Disposal
Notice: This lamp contains mercury[cite: 50]. Please manage in accordance with disposal laws[cite: 51]. Visit lamprecycle.org for more information[cite: 52].
Ultraviolet Radiation Warning: This lamp can cause serious skin burns and eye inflammation from shortwave UV radiation if the outer envelope is broken or punctured[cite: 49]. Do not use where people will remain for more than a few minutes unless adequate shielding is used.
Replacement Parts
We carry a full line of replacement ballasts and sockets compatible with S51 High Pressure Sodium systems.
