Landscape Design Landscape Lighting Design

Question 1

What is the difference between 'uplighting' and 'downlighting' techniques in landscape lighting design?

Accepted Answer

Uplighting directs light upward from ground level to illuminate trees or structures; downlighting mimics moonlight by placing fixtures above to cast light downward

Answer

Uplighting uses fixtures above the subject; downlighting uses fixtures below

Answer

Uplighting is used for pathways; downlighting is used for water features

Answer

There is no functional difference between the two techniques

Question 2

What is 'color temperature' in landscape lighting, measured in Kelvin (K)?

Accepted Answer

The warmth or coolness of the light's color appearance, where lower values are warmer (amber) and higher values are cooler (blue-white)

Answer

The heat output of a lamp that affects plant growth nearby

Answer

The maximum ambient temperature at which a fixture can operate safely

Answer

The color of the fixture housing as rated by the manufacturer

Question 3

What is 'glare' in landscape lighting design and how is it controlled?

Accepted Answer

Uncomfortable brightness from a light source that reduces visibility and creates discomfort; controlled by shielding, proper aiming, and appropriate lumen levels

Answer

Excessive brightness in a fixture that makes nearby plants grow faster; controlled by dimming

Answer

Reflection from water features that causes overexposure in photographs; controlled by polarized lenses

Answer

The flicker effect from low-quality LED fixtures; controlled by using quality drivers

Question 4

What does 'lumen output' measure in landscape lighting fixture selection?

Accepted Answer

The total quantity of visible light emitted by a light source

Answer

The lifespan of the bulb measured in hours

Answer

The energy consumption of the fixture in watts

Answer

The color accuracy of the light source on a 0–100 scale

Question 5

Which wire voltage system is most commonly used in residential low-voltage landscape lighting in the US?

Accepted Answer

12V DC low-voltage system

Answer

120V AC line voltage

Answer

24V DC commercial system

Answer

240V high-voltage system

Question 6

What is 'moonlighting' as a landscape lighting technique?

Accepted Answer

Placing fixtures high in trees to cast dappled, soft light downward, mimicking natural moonlight filtering through foliage

Answer

Installing lighting that operates only during full moon nights

Answer

Using blue-filtered light to create a nighttime ambiance

Answer

A lighting technique reserved for commercial landscape projects