Use this GLORILUM planning guide to compare E26, E27, E14 and B22 lamp bases and record the input voltage required for your target market or project. Base dimensions and regional conventions are useful starting points, but the selected base, voltage, filament or driver design and test sample must be reviewed together.
Lighting brands, wholesalers, designers and commercial-project buyers can use the worksheet to communicate fixture information, supply range and certification needs before quotation. It is a project-planning reference, not a universal certification statement.