ADVANCE MFG# LI551H4, Ballast Ignitor 1-5/8 Diameter 150W HPS

Val-U-Pak Plus (77L) Ballast Ignitor High Pressure Sodium Ballast Bulb Type Max Bulb Watts 150 W Max Distance to Bulb 2 ft Number of Bulbs Supported 1 1 5/8 in Diameter 2 1/8 in Length