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Keystone Lighting

Valid May 1–31, 2026, until 11:59 PM ET. Limited quantities while supplies last. Cannot be combined with any other coupon, discount, promotion, clearance item, or volume discount. Subject to change at any time.
Valid June 1 - 30th, 2026, until 11:59 PM ET. Limited quantities while supplies last. Cannot be combined with any other coupon, discount, promotion, clearance item, or volume discount. Subject to change at any time.
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  1. keystone-lighting_ktl-fc8t9-cw

    Keystone Lighting ktl-fc8t9-cw 22w T9 Circline Fluorescent Lamp 4100K

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  2. keystone-lighting_ktl-fc8t9-dl

    Keystone Lighting ktl-fc8t9-dl 22w T9 Circline Fluorescent Lamp 6500K

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    20 - 29 Watt
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What customers says

Keystone Lighting

Keystone Technologies aims to make lighting simple, hassle-free and enjoyable. With nearly 70 years of manufacturing experience building quality lighting components, the brand delivers easy-to-use products such as troffer LED retrofit kits. Their HID replacement lamps listed for dry and wet locations are a favorite for commercial applications. Keystone LED shop lights product line provides you with the ideal task lighting, including T8 LED tubes and T5 LED lamps. Buy reliable, long-lasting and efficient products from a trusted manufacturer with Keystone Technologies.