Rebaydo 2pcs BA20D Male Solderable Caps are manufactured from copper and metal materials with a plated metal cap and epoxy bottom construction for long-lasting durability. Each cap features a 20 mm BA20D base and includes 3 contacts, allowing it to be wired as either a single filament (1142 style) or dual filament (1158 style) configuration. Designed with solderable contacts for dependable repairs and custom lighting projects in vintage and classic cars, tractors, motorcycles, and similar applications. Dimensions are approximately 0.77 inches in diameter, 0.92 inches across the locking wings, and 0.89 inches in length. Electrical specifications include 110-240VAC, 50/60Hz, 2200 watts maximum, operating temperature from -30°C to +170°C, and IP5 protection. CE and RoHS listed.