If you’ve seen NANLUX Nebula B4 or Nebula C8 mentioned in the latest NANLUX lighting fixtures, you may be wondering what a “light engine” actually is. More importantly, what makes the two systems different?
In simple terms, the light engine is the LED technology inside a fixture that creates the light. The type and combination of LEDs affect colour temperature, colour reproduction, output and how subjects appear on camera.
NANLUX has developed two Nebula Light Engine solutions: the Nebula B4 White Light Engine and the Nebula C8 Colour Light Engine. Each system has a different purpose.
What is the NANLUX Nebula Light Engine?
A light engine is the combination and arrangement of LED sources inside a lighting fixture. It determines the spectrum of light produced. As a result, it affects how colours, skin tones and materials appear both to the eye and on camera.
NANLUX’s Nebula system uses two different approaches:
- Nebula B4 – designed to maximise efficient, high-output white light.
- Nebula C8 – designed to provide greater colour flexibility and a wider colour spectrum.
The idea is simple: use the right light engine for the job.

NANLUX Nebula B4: High-output white light
The Nebula B4 White Light Engine is a tunable bi-colour LED system. It uses four types of white LEDs:
- Cool White+
- Cool White−
- Warm White+
- Warm White−
Together, these LEDs produce white light from 2,700K to 6,500K. The B4 also provides green/magenta adjustment across the range. This makes it easier to match other lights and existing sources on set. It can also help create a more consistent look between different fixtures.
Why is the B4 different?
The B4 uses white LEDs rather than mixing multiple coloured LEDs to create white light. According to NANLUX, this approach provides greater luminous efficiency. In practical terms, more of the fixture’s power can become useful white-light output. At the same time, less energy is lost as heat. This is especially useful in high-output fixtures. These lights often need to run for long periods while maintaining consistent performance.
The Nebula B4 is currently used in:
These fixtures are designed for productions where powerful, consistent white light is the priority.

NANLUX Nebula C8: Eight-colour flexibility
The Nebula C8 Colour Light Engine takes a different approach.
Instead of four types of white LEDs, it combines eight individual LED colours:
Deep Red, Red, Amber, Lime, Green, Cyan, Blue and Indigo.
NANLUX designed the C8 to provide a broader colour spectrum and greater control than more traditional colour LED systems.
One of its biggest advantages is its extremely wide colour temperature range.
1,000K to 20,000K
The Nebula C8 can produce light from 1,000K to 20,000K. It also provides green/magenta adjustment across the range.
At 1,000K, the light can produce extremely warm, candle-like tones. At 20,000K, it can create very cool blue daylight effects.
As a result, the C8 can handle everything from natural white light and fill lighting to strong colour effects and creative lighting.
Why does the C8 use eight colours?
The additional Deep Red and Indigo LEDs help extend the spectrum into areas where some conventional colour LED systems can struggle. Deep Red helps provide more continuous coverage of the red spectrum. This can contribute to richer and more natural-looking skin tones. The expanded spectrum also helps with the reproduction of challenging colours such as deep red and indigo. In addition, NANLUX designed the C8’s Indigo LED without UV wavelengths. This helps avoid unwanted UV-triggered fluorescence from objects and materials on set.
The Nebula C8 is used in fixtures including:
Nebula B4 vs C8: What’s the difference?

Which NANLUX Nebula Light Engine do you need?
The easiest way to think about the difference is simple:
- Need maximum white-light output? Choose a fixture with the Nebula B4.
- Need maximum colour flexibility? Look for the Nebula C8.
Both systems have the same overall goal: to give filmmakers and lighting professionals more predictable, controllable and reliable light on set.
However, they approach that goal differently. The Nebula B4 focuses on efficient, high-output white light. The Nebula C8, meanwhile, focuses on colour flexibility, spectrum and creative control.
Understanding the light engine inside a fixture makes it easier to choose the right NANLUX light for your production.
Explore NANLUX Lighting at Movievision
Looking for a NANLUX fixture with Nebula B4 or C8 technology? Explore the latest NANLUX LED lighting available from Movievision.
