PHILIPS ADVANCE LI551-H4 | 150W-400W HPS Ignitor | 120/277V | 105°C

Philips Advance LI551-H4 is a heavy-duty electronic ignitor specifically engineered for High Pressure Sodium (HPS) systems ranging from 150W to 400W. As a critical component of the ballast circuit, this ignitor provides the high-voltage starting pulse required to strike the arc in S50, S51, S56, S66, and S67 HPS lamps. Designed for use with HX-HPF magnetic ballasts, it features a durable black round case and is rated for continuous operation at temperatures up to 105°C. This reliable, USA-assembled component includes the CC-125 mounting clamp for a secure, professional installation in industrial and outdoor luminaires.

Product Overview

The Philips Advance LI551-H4 is a vital replacement part for maintaining high-intensity discharge (HID) lighting systems. High Pressure Sodium lamps require a high-voltage ignitor to start the internal arc; without a functioning ignitor, the lamp will fail to strike even if the ballast and bulb are in good condition. This model is optimized for the thermal rigors of street lighting, parking lots, and industrial warehouses, where fixtures often operate for extended periods at high temperatures. Assembled in the USA, it serves as a high-quality retrofit for standard HPS magnetic ballasts across several common ANSI wattages.

• Consistent Arc Striking: Ensures reliable starting for HPS lamps, reducing unnecessary service calls and maintenance downtime.
• Industrial Build Quality: The 105°C temperature rating ensures longevity within enclosed fixtures that trap heat.
• Secure Mounting: Includes the CC-125 clamp to prevent the component from vibrating loose in outdoor or high-vibration settings.
• Broad Compatibility: Covers a range of common ANSI codes including S50, S51, S56, S66, and S67, making it a versatile addition to any maintenance kit.

Technical Specifications

• Brand: Philips Advance
• Component Type: Electronic HID Ignitor
• Wattage Compatibility: 150W, 200W, 250W, 310W, 400W
• Rated Voltage: 120V / 277V
• Max Case Temperature: 105°C
• Ballast Requirement: HX-HPF Magnetic Ballast
• ANSI Code Support: S50, S51, S56, S66, S67
• Housing: Black Round Case
• Mounting: CC-125 Clamp (Included)
• Country of Origin: Assembled in the USA

Installation & Application

• Safety First: Ensure all power is disconnected before replacing the ignitor. Check the wiring diagram on the ballast to ensure correct lead connections.
• Compatibility Check: Verify that the lamp's ANSI code (e.g., S51 for 400W HPS) matches the ignitor's rating to prevent damage to the system.
• Applications: Recommended for roadway lighting, area security lighting, high-bay warehouse fixtures, and industrial yards.