FAQs
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An air-cushioned (pneumatic) column in a light stand prevents the
mounted light from dropping suddenly when a locking knob or lever is
released.This system in incorporated in the following
HARISON products:
HARISON MiniTower-AC Light StandHARISON ProTower-AC Light Stand
Further
advantages :Operator safety
- If the operator releases
the column lock while adjusting height, the air cushion resists the
downward movement. - This prevents the column
and mounted light from suddenly crashing down onto the operator's hands.
- Protects the light fixture
- A sudden drop can damage
the light, its mounting spigot, cables, or internal components. - The pneumatic system
provides a controlled descent.
- Smooth height adjustment
- The column moves up and
down smoothly rather than falling under the weight of the fixture. - This is particularly useful
with heavier studio lights.
- Easier operation
- The operator does not have
to support the entire weight of the light while simultaneously operating
the locking lever. - This makes one-person
adjustment considerably easier.
- If the operator releases
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A) Several HARISON products are rated as using “Daylight-balanced” LEDs, Such as :
HARISON ARGOS L-12 LED Light
In photography, “daylight-balanced LEDs” are LEDs designed to produce light with a colour temperature similar to natural daylight, typically around 5,500–5,600 K. Colour temperature describes whether the light appears warm or cool:
So when a photographic light is described as “Daylight 5600 K”, it means the light is intended to appear similar to daylight and allows the camera to be set around 5600 K white balance.Light source Approx. colour temperature Appearance Tungsten lamp 2,800–3,200 K Warm / yellow Warm white LED 3,000–4,000 K Warm Daylight LED 5,000–6,500 K Neutral / cool Midday daylight ~5,500–5,600 K Neutral white
Why is this useful in photography?
1. Easy camera white balance You can set the camera to approximately 5600 K and obtain natural-looking colours without having to compensate for a yellowish or bluish light.
2. Matches natural daylight A daylight LED can be used alongside: • sunlight coming through windows, • daylight-balanced strobes, • other 5600 K photographic fixtures. This helps avoid different parts of the scene having noticeably different colour casts.
3. Useful for video and studio work 5600 K is a common reference point for cameras, video lighting and photographic equipment, making it convenient for multi-light setups. -
CRI stands for Colour Rendering Index. It is a measure of how accurately a light source makes colours appear compared with a reference light source.
In simple terms:
CRI tells you how “true to life” colours look under a particular light.
Why is high CRI good for photography?
Imagine photographing a person's face under two different lights:
- Low-CRI light (e.g. CRI 70): skin may look slightly dull, grey, greenish or unnatural.
- High-CRI light (e.g. CRI 95): skin tones, clothing and other colours appear much closer to their natural appearance.
What does the number mean?
CRI is generally expressed from 0 to 100:
CRI General quality Photographic suitability 60–70 Poor ❌ Generally unsuitable 80–89 Good ⚠️ Acceptable for general use 90–94 Very good ☑ Good for photography For professional photographic LEDs, a CRI ≥90 is a good minimum specification.
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Tungsten-balanced LEDs” in photography mean LED lights designed to produce a tungsten-like colour temperature, typically around 3,200 K. They are not actually made from tungsten; they are LEDs engineered to emit a warm, tungsten-balanced light.
What is tungsten light?
Traditional photographic tungsten lamps used incandescent bulbs with a tungsten filament. Their light is warm and typically around 3,200 K.
Type Typical CCT Appearance Tungsten ~3,200 K Warm / amber Daylight ~5,600 K Neutral / slightly cool
Why are 3,200 K LEDs useful?
1. They reproduce the look of traditional tungsten lighting Photographers and cinematographers can obtain the warm appearance associated with conventional tungsten lamps while using a much more energy-efficient LED fixture.
2. They can match existing tungsten fixtures If a studio already has tungsten lights, a 3,200 K LED can be used alongside them without introducing a major colour-temperature mismatch.
3. Useful for indoor scenes Many indoor environments have warm lighting. A tungsten-balanced LED can create a natural-looking indoor atmosphere.
4. Useful for creative effects The warm colour can deliberately create a cosy, intimate or cinematic appearance for portraits, interviews, product photography and film scenes.
5. Easy camera white balance Set the camera to approximately 3,200 K, and a good tungsten-balanced light will appear neutral/white in the resulting image.
Tungsten vs. daylight LEDs
A simple way to think about it:
Tungsten 3200 K → warm light → indoor/cinematic/creative applications
Daylight 5600 K → neutral daylight → outdoor/window/daylight applications
This is particularly useful for a bi-colour photographic light. For example, your fixture could offer:
Colour Temperature: 3200 K (Tungsten) – 5600 K (Daylight)
Several HARISON LED lights offier thie Bi-Color feature , such as :
By using the “DC” (Dual Colour) lights the photographer can easily adjust the light to match the ambient illumination without using colour-correction gels.