A 12mm flat-head LED indicator light with pre-attached wires is a compact, flush-mount pilot lamp widely used for custom turn signal dashes on cars, motorcycles, and boats. These units typically feature a 12V–24V metal housing, an integrated arrow or dot symbol, and an IP67 waterproof rating.

Hole Size: Fits a 12 mm (1/2 inch) mounting drill hole.
Design: Low-profile flat head with metal housing (commonly black anodized or stainless steel).
Voltage: Operates on 12V DC (many support 12V–24V ranges).
Wiring: Includes pre-soldered wire leads (usually 15cm to 30cm long, 22AWG–26AWG).
Protection: IP67 dustproof and waterproof rating for outdoor or marine use.