Metal Halide Tubular Upgrade direct replacement lamp for Sodium SON HPS or Mercury Ballasts 250W White-Lux Plus.This lamp can be used to convert the yellow light of existing Sodium installations to clean white metal halide light or replace existing mercury lamps. Single Ended Metal Halide Gas Discharge Lamps with E40 base. Features- UV block, Very high light output with excellent colour rendition of colour temperature of 4000K, For commercial and industrial applications, commonly used in sports arenas, car parks, petrol stations, rail and dock yards Operate on both SON and mercury ballasts with arc tube for fast starting. All lamps to be used in enclosed fittings and require ignitors, this Metal Halide Replacement for SON/HPL, Control Gear HSP Ballast & Ignitor, Suitable replacements or upgrades for existing SON or HPL lamps, giving a whiter light with better colour rendering. Direct replacement - uses existing HPL (Mercury) or SON control gear Suitable for upgrading most high bay lighting. Please Note: These lamps can only be used in luminaires fitted with ignitor.Manifacturer: Venture Lighting.