ADVANCE MFG# LI533H4, Ballast Ignitor 1-5/8 Diameter 400W MH

Val-U-Pak Plus (77L) Ballast Ignitor Metal Halide Ballast Bulb Type Max Bulb Watts 400 W Max Distance to Bulb 25 ft Number of Bulbs Supported 1 1 5/8 in Diameter 2 1/2 in Length