This vintage Selecto Flash round signal light features a bright amber lens designed for vehicle use. Marked as property of Selecto Flash Inc., Orange, New Jersey, this piece likely dates from mid-20th century automotive accessory production. The amber lens is made of plastic and is mounted on a yellow metal housing.

Key features include:

• Distinctive round amber lens with concentric ridges for signal light diffusion.
• Yellow metal housing marked "PROPERTY OF SELECTO FLASH INC. ORANGE N.J." indicating authentic manufacturer origin.
• Battery-powered wiring inside the housing, with visible resistors and connectors.
• Three mounting screw holes on the lens for secure attachment.
• Lens and housing show signs of use consistent with vintage condition but remain intact.
• Compact size suitable for various vehicle signal light applications.

This Selecto Flash amber signal light was made for automotive signaling, providing clear turn or hazard indication with its bright orange lens. Today, it serves as a collectible vintage vehicle part or restoration component for classic cars.