Koito 1157NA Dual-Filament Amber Automotive Light Bulb

The Koito 1157NA is a dual-filament miniature halogen automotive bulb featuring an amber glass envelope for turn signal and parking light applications. Manufactured by Koito Manufacturing Co., Ltd., a leading Japanese OEM automotive lighting supplier since 1915, this bulb delivers reliable performance and meets strict OEM quality standards.

Key Specifications:

• Bulb Type: 1157NA (Natural Amber)
• Base Type: BAY15d twist-lock base with 3 contacts
• Voltage: 12.8V
• Wattage: 26.9W/8.3W dual filament
• Dimensions: 1.02 x 2.00 inches (26 x 50.8 mm)
• Brightness: 402/32 lumens
• Rated Lifespan: Up to 1,200 hours
• Amber glass coating for natural amber light output

Applications:

• Front and rear turn signal lights
• Parking lights and side marker lights
• Brake and tail light combinations
• Compatible with standard 1157 sockets

This bulb is interchangeable with other 1157-series bulbs including 1157, 2057, and 2357, making it a versatile replacement option. The amber coating provides natural colored light output without requiring an amber lens. As an OEM-quality component from Koito, this bulb is manufactured to the same exacting standards used by major automotive manufacturers worldwide, ensuring consistent performance and long service life.