Sources & method
Where the answers come from
BulbMatch combines public guidance with snapshots of official manufacturer catalogs. Product records are evidence for explaining labels and fit—not listings, rankings, or items for sale.
Last reviewed August 28, 2026Product catalog snapshots
The current local snapshot contains 3,245 lamp records. 1,008 records are held out of article generation because a core field is missing or the official page conflicts with itself. 2,282 records currently meet the public model-page threshold. Prices, stock claims, and retailer rankings are not collected.
Official product catalog
682 normalized records used as first-party examples.
Official product catalog
1,815 normalized records used as first-party examples.
Official product catalog
8 normalized records used as first-party examples.
Official product catalog
4 normalized records used as first-party examples.
Official product catalog
47 normalized records used as first-party examples.
Official product catalog
292 normalized records used as first-party examples.
Official product catalog
397 normalized records used as first-party examples.
Research and guidance
A standards page can define a code. An appliance support page can specify the lamp for a particular fixture. The two sources answer different questions, so the site does not treat them as interchangeable evidence.
Standards and definitions
Used for names, dimensions, and technical definitions.
IEC 60061 — Lamp Caps and Holders
International standard framework for lamp caps, holders, interchangeability, and safety; full database access requires purchase
ANSI C78.79 — Nomenclature for Electric Lamp Envelope Shapes
A, BR, PAR, G, ST, and other bulb-envelope codes and nominal size conventions
Government and public guidance
Used for consumer labels, efficiency, safety context, and survey data.
More U.S. homes used LEDs over other bulb types for indoor lighting in 2024
U.S. household LED adoption data and survey context
Shopping for Light Bulbs
Lumens, watts, color appearance, and the Lighting Facts label
Purchasing Energy-Efficient Light Bulbs
Lamp shapes, standard base types, efficiency, and operating context
Light Fixtures (Downlights)
Color temperature and LED/dimmer compatibility guidance
The FTC Lighting Facts Label: Questions and Answers for Manufacturers
What the Lighting Facts label must disclose, including lumens, watts, life, CCT, and design voltage
Flicker Basics
LED temporal light modulation, measurement language, and health/performance context
Nationally Recognized Testing Laboratory Program FAQ
What third-party product certification marks do and do not establish
Technical references
Used when a term has a formal measurement definition.
Manufacturer support
Used for fixture-specific instructions, controls, and model limitations.
Refrigerator — Selecting Appropriate Light Bulbs
Refrigerator bulb size, type, wattage, and LED-module cautions
Range & Wall Oven — Oven Light Replacement
Oven power-off, cooling, cover, and model-specific lamp guidance
How do I remove or install my Light Bulb?
Examples of model-dependent range-hood lamp formats and replacement methods
Light Bulbs That Can Be Used in Garage Door Openers
Bulb size limits, wattage, and possible radio interference
Challenges of Dimming LED Loads
Why a lamp marked dimmable can still behave poorly with an incompatible control
Guide to Light Bulb Shapes, Types, and Sizes
Public definitions of common base families and center-to-center bi-pin spacing, including G4 and G9