Heavy-Duty Shatter-Resistant Lighting for Demanding Applications

The 100A21 Safe-Shield Rough Service Incandescent Lamp is engineered for durability in challenging environments where vibration, impact, and temperature fluctuations are common. Rated at 100 watts and 130 volts, this rugged A21 bulb features a C-9/5 filament design with five support wires, ensuring superior resistance to shock and vibration compared to standard incandescent bulbs.

The proprietary Safe-Shield coating provides a shatter-resistant barrier, preventing glass shards from scattering if the bulb is broken—ideal for food service, industrial sites, and high-traffic areas where safety is critical. With a frosted finish and warm 2700K soft white glow, it delivers comfortable illumination for workspaces, task lighting, and utility fixtures.

Measuring 5.22 inches (132.59mm) in length and 2.63 inches (66.80mm) in diameter, the lamp fits standard E26 medium screw bases and is packaged in 4 lamps per box with 120 lamps per case for commercial and institutional applications. Rated for 4,000 hours of life, it provides extended performance compared to regular A21 bulbs.

✅ Why Choose Safe-Shield Rough Service Bulbs?

✔ Shatter-Resistant Coating – Helps prevent glass fragments from spreading in sensitive areas.
✔ Rugged Filament Design – 5 support wires minimize filament breakage from vibration.
✔ Extended Lifespan – Rated for 4,000 hours to reduce replacements in demanding environments.
✔ Superior Safety – Ideal for applications requiring additional protection from glass breakage.

🌱 Consider LED for Energy Efficiency

While the 100A21 Safe-Shield Rough Service Lamp is a reliable solution for legacy systems, upgrading to LED rough service lamps can reduce energy usage by up to 85%, extend lifespans to 25,000+ hours, and eliminate the need for filament supports entirely.

Ready for an Upgrade?

The 100A21 Safe-Shield 100W Rough Service Lamp provides a rugged, shatter-resistant solution for demanding lighting environments. For even greater energy savings and durability, ask us about compatible LED alternatives with shatter-resistant coatings and rough service ratings.