Use P/N 06215-00 (5/8” light kit) for 12-volt 2” gauges and P/N 06294-00 (5/8” light kit) for 24-volt 2” gauges. For 2” tachometer replacement light kits, please consult with your maximatecc salesperson. Use P/N 210341 & 210342 for new generation (Turotest-built mechanical pressure gauges.) These light kits are not compatible with the older-generation Datcon gauges. Note that lamp filters, while changing dial color, will reduce brightness. Wedge-base lamp assemblies are recommended for optimal sealing performance.