Sylvania 13177 150A21/99/XL 150W A21 Frosted Incandescent Bulb – 120V E26 Medium Brass Base | 2,225 Lumens

Sylvania 13177 150A21/99/XL 150W A21 Frosted Incandescent Bulb – 120V E26 Medium Brass Base

Product Overview

The Sylvania 13177 is a professional-grade general-purpose incandescent lamp for customers who require the light quality and operating characteristics of a traditional 150W incandescent bulb. The A21 envelope provides additional room for the higher-wattage CC-8 filament while maintaining compatibility with fixtures designed for standard medium-base lamps.

Unlike shorter-life general-service incandescent lamps, the 150A21/99/XL is part of Sylvania's extended-life Excel-Line family and carries a 2,500-hour rated average life. This makes it particularly useful for maintenance applications where a traditional incandescent source is required but reducing lamp replacement frequency is desirable.

Key Features

• 150W Incandescent: High-output traditional incandescent lamp for compatible 120V fixtures.
• 2,225 Lumens: Provides substantial general-purpose light output.
• Extended 2,500-Hour Life: Excel-Line design provides longer rated service life than standard 750- or 1,000-hour incandescent lamps.
• Standard Frost Finish: Helps diffuse filament light for a softer, more uniform appearance.
• A21 Bulb Shape: Larger than a standard A19 bulb; fixture clearance should be confirmed before ordering.
• E26 Medium Brass Base: Durable standard medium screw-base configuration.
• CC-8 Filament: Manufacturer-specified filament construction.
• 120V Operation: Designed specifically for standard 120V electrical systems.

Technical Specifications

Dimensions & Fixture Fit

• Bulb Shape: A21
• Maximum Overall Length: 5.31 inches
• Light Center Length: 3.88 inches
• Base: E26 Medium Brass

Important: An A21 bulb is physically larger than a typical A19 household bulb. Even though both may use an E26 medium screw base, this does not guarantee that the A21 lamp will fit every A19 fixture. Confirm available fixture clearance before ordering.

Applications

• Commercial and residential general-purpose lighting
• Property management and facility maintenance
• Utility and service-area lighting
• Fixtures requiring a high-output 150W incandescent lamp
• Replacement applications requiring an A21 bulb with an E26 medium base
• Applications where extended incandescent lamp life is preferred

Before You Order

• Product Number: Confirm you require Sylvania 13177.
• Ordering Code: Match 150A21/99/XL when cross-referencing an existing lamp.
• Voltage: This lamp is rated for 120V.
• Wattage: Confirm your fixture is rated to safely operate a 150W incandescent bulb.
• Bulb Size: This is an A21, not an A19. Verify physical fixture clearance.
• Base: Confirm an E26 medium screw socket.
• Finish: This version has a Standard Frost finish.
• Overall Length: Confirm that the fixture can accommodate the 5.31-inch maximum overall length.

Safety & Handling

• Disconnect power before installing or removing the bulb.
• Allow the lamp and fixture to cool completely before handling.
• Use only in fixtures rated for the lamp's 150W power consumption and heat output.
• Do not exceed the fixture manufacturer's maximum wattage rating.
• Do not install a lamp with cracked, loose, or otherwise damaged glass.
• Keep combustible materials away from the lamp and hot fixture surfaces.
• Install securely into the E26 socket without overtightening.

Ordering Information

• Manufacturer: Sylvania
• Product Number: 13177
• Ordering Abbreviation: 150A21/99/XL
• Description: 150W A21 Standard Frost Excel Incandescent Lamp
• Voltage: 120V
• Base: E26 Medium Brass
• Lumens: 2,225
• Rated Life: 2,500 Hours
• MOL: 5.31 in
• LCL: 3.88 in