They have an average outdoor durability of 5 to 8 years .
This is a commercial-grade 4.5-inch heat lamp bulb used in professional kitchens. 122420
The identifier appears in several contexts, most commonly as a part number for industrial components or as a date code (December 24, 2020). Based on available technical and product data, here are the most relevant "long-form" details and reviews for items associated with this number: Franke / AllPoints 122420 Heat Lamp Bulb Go to product viewer dialog for this item. They have an average outdoor durability of 5 to 8 years
It is rated to meet or exceed OEM Crown performance while remaining more affordable than original parts. 122420
Used in heavy machinery (like forklifts), this aftermarket part is reviewed for its cost-effectiveness.