Guide
Light Bulb Base Guide
Understand E26, E12, GU10, G9, and other socket types before buying bulbs.
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Light bulb guides for every room
Learn the specs that matter before you buy: base, shape, lumens, color temperature, dimming, room counts, and whole-home checklists.
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E26 vs E12 Bulb Bases
Know the difference between standard medium bases and smaller candelabra bases.
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Light Bulb Shape Guide
Compare A19, BR30, G25, B11, PAR38, and other common bulb shapes.
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A19 vs BR30 Bulbs
Choose between standard bulbs and recessed flood bulbs for common home fixtures.
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Lumens and Brightness Guide
Pick brightness by room using lumens instead of guessing from watts.
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Color Temperature Guide
Understand 2200K, 2700K, 3000K, 4000K, and 5000K lighting.
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Room Lighting Planner
Plan bulb requirements for one room before you shop or talk to a contractor.
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Whole-Home Light Bulb Checklist
Build a room-by-room light bulb checklist for an entire home.
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