Focus Earth Glossary

A comprehensive collection of key terms and definitions you need to know

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Fixture
Housing portion of the luminaire, connecting a light to the infrastructure (ceiling, wall, pole, etc.)
Luminaire Components
Lighting Supply and Illumination Industry
Lumens (lm)
Unit of measurement for the total amount of visible light emitted by a source. Higher lumens indicate brighter light.
Basic Lighting Terms
Lighting Supply and Illumination Industry
Incandescent Bulb
Traditional light bulb that produces light by heating a filament inside a glass bulb.
Traditional Lamps and Fixtures
Lighting Supply and Illumination Industry
Recessed Lighting
Fixtures installed into the ceiling to provide unobtrusive lighting, often used in modern design.
Lighting Design and Applications
Lighting Supply and Illumination Industry
Ballast
Device used to regulate the current to a fluorescent or HID lamp, ensuring it starts and operates properly.
Electrical and Control Systems
Lighting Supply and Illumination Industry
Mounting Bracket
Structural component used to attach lighting fixtures to surfaces, such as walls or ceilings.
Installation and Maintenance
Lighting Supply and Illumination Industry
Appraisal
Unbiased professional opinion of a property's value, conducted by a licensed appraiser.
General
Property Valuation
Cost Approach
Estimates value by the cost to replace or reproduce the property, minus depreciation.
Types of Valuation
Property Valuation
Net Operating Income (NOI)
Income generated by a property after operating expenses are deducted, but before financing costs or taxes.
Income-Producing Property
Property Valuation
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Lighting Supply and Illumination Industry

Luminaire Components

Fixture
Housing portion of the luminaire, connecting a light to the infrastructure (ceiling, wall, pole, etc.)

Lighting Supply and Illumination Industry

Luminaire Components

Fixture
Housing portion of the luminaire, connecting a light to the infrastructure (ceiling, wall, pole, etc.)

Basic Lighting Terms

Fixture
Housing portion of the luminaire, connecting a light to the infrastructure (ceiling, wall, pole, etc.)

Traditional Lamps and Fixtures

Fixture
Housing portion of the luminaire, connecting a light to the infrastructure (ceiling, wall, pole, etc.)

Lighting Design and Applications

Fixture
Housing portion of the luminaire, connecting a light to the infrastructure (ceiling, wall, pole, etc.)

Property Valuation

General

Fixture
Housing portion of the luminaire, connecting a light to the infrastructure (ceiling, wall, pole, etc.)

Types of Valuation

Fixture
Housing portion of the luminaire, connecting a light to the infrastructure (ceiling, wall, pole, etc.)

Income-Producing Property

Fixture
Housing portion of the luminaire, connecting a light to the infrastructure (ceiling, wall, pole, etc.)

Financial and Investment

Fixture
Housing portion of the luminaire, connecting a light to the infrastructure (ceiling, wall, pole, etc.)

Property Types and Classifications

Fixture
Housing portion of the luminaire, connecting a light to the infrastructure (ceiling, wall, pole, etc.)

Organizations

Organizations

Fixture
Housing portion of the luminaire, connecting a light to the infrastructure (ceiling, wall, pole, etc.)

LED Types

LED Types

Fixture
Housing portion of the luminaire, connecting a light to the infrastructure (ceiling, wall, pole, etc.)
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