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These lamps are direct replacements for existing fluorescent linear lamps. They install into compatible, ballast-powered light fixtures.
https://www.grainger.com/product/PHILIPS-Linear-Fluorescent-Bulb-4-492X54?searchQuery=492X54&searchBar=true
These lamps are direct replacements for existing fluorescent linear lamps. They install into compatible, ballast-powered light fixtures.
https://www.grainger.com/product/PHILIPS-Linear-Fluorescent-Bulb-4-492X54?searchQuery=492X54&searchBar=true