From Smartphones to Projectors: How Dangbei Pioneered Liquid Cooling in Home Entertainment

by Dangbei Official on September 18, 2025

In the world of consumer tech, every breakthrough sparks two familiar voices: excitement and skepticism. When Dangbei unveiled its flagship projector, Dangbei S7 Ultra Max, as the first projector equipped with liquid cooling technology, critics were quick to sneer: “Projectors don’t need liquid cooling — it’s just a gimmick.” Some even worried: “What if the liquid leaks and ruins the machine?”

But not long after, Apple rolled out the iPhone 17 Pro series with liquid cooling and proudly called it “the most powerful cooling system in iPhone history.” Suddenly, the same technology that was doubted in projectors became “black technology” in smartphones. So, why is liquid cooling celebrated in phones but questioned in projectors?

iPhone 17 Pro series

The answer is simple: it’s not that liquid cooling doesn’t belong in projectors — it’s that Dangbei had the courage to go first.

Tackling the Core Dilemma: High Power, Low Noise

Whether it’s a phone or a projector, the evolution of cooling technology revolves around a universal demand: deliver high performance without overheating or making too much noise.

Take smartphones: Apple’s A18 Pro chip delivers massive computing power, which naturally produces more heat during gaming or video rendering. Traditional air cooling can’t keep up. That’s why Apple turned to liquid cooling + vapor chambers to keep temperatures under control while reducing fan noise.

Projectors face an even bigger challenge. With brightness levels like 5800 CVIA lumens in the Dangbei S7 Ultra Max, power consumption and heat output skyrocket. Traditional air cooling requires multiple fans spinning at high speeds, creating distracting fan noise — a common complaint during dark, quiet movie scenes.

Dangbei’s solution? Liquid cooling. By using coolant circulation, thermal plates, and low-speed silent fans, the Dangbei S7 Ultra Max can efficiently transfer heat away from the optical engine and chips without the need for noisy, high-RPM fans. The result: brighter images, cooler operation, and whisper-quiet performance.

Real-World Proof: Quieter and Cooler

It’s one thing to talk theory, but real-world use tells the true story. The Dangbei S7 Ultra Max equipped with liquid cooling delivers a striking difference.

At full 5800-lumen brightness, the projector remained nearly silent even from 1 meter away, providing a distraction-free viewing experience. During dark, quiet movie scenes, there was no intrusive fan noise to break the immersion.

Even after 4 hours of continuous 4K playback, the S7 Ultra Max maintained a noticeably lower surface temperature, proving that liquid cooling ensures not only silence but also long-term stability.

In short: liquid cooling isn’t just a spec-sheet brag — it’s an experience upgrade.

projector equipped with liquid cooling technology

Being First Means Taking the Heat

History shows that the first brand to adopt new technology usually faces the most criticism. Dangbei recently became the pioneer by introducing liquid cooling into projectors — and, as expected, some questioned the move. But the results quickly silenced doubts: lower noise, better stability, and a new standard for high-end performance.

This isn’t the first time Dangbei has led the way. Years ago, when most projectors still relied on low-brightness LEDs, Dangbei was among the pioneers to bring laser light sources into home projectors, ushering in the “laser era.” Now, with liquid cooling, Dangbei is once again solving a key user pain point: noise.

Apple’s recent adoption of liquid cooling in the iPhone 17 Pro only confirms what Dangbei already understood — liquid cooling is not a gimmick but the future of high-performance devices. And Dangbei had the foresight and courage to be the first.

Dangbei S7 Ultra Max

How Does Liquid Cooling Actually Work?

Liquid cooling may sound complex, but the idea is simple: it uses liquid instead of air to carry heat away more efficiently. In the Dangbei S7 Ultra Max, the system absorbs heat from the laser engine and chips, quickly transfers it through a sealed liquid loop, and releases it at the cooling fins. Silent fans then gently push the heat outside.

Because liquid transfers heat much faster than air, the projector stays cooler and quieter, even during long hours of high-brightness use. The result is a more stable performance and an immersive viewing experience without the distraction of fan noise.

The Future Dangbei Saw First

From skepticism to validation, Dangbeis S7 Ultra Max proves that the first step is always the hardest and also the most visionary. For users, the advantages are clear: the projector delivers silent operation for immersive movie nights, maintains stable brightness and performance even after hours of use, and offers the reassurance of a cooling solution built for the future.

Dangbei didn’t just build a projector — it set the direction for the industry. Others will follow, but as the pioneer, Dangbei has already proven that liquid cooling in projectors is not only possible, but also the new gold standard for high-end home entertainment.

FAQ: Liquid Cooling in Projectors

Q1: Why would a projector need liquid cooling?
A: High-brightness projectors like the Dangbei S7 Ultra Max generate significant heat. Traditional air cooling relies on high-speed fans, which often create distracting noise. Liquid cooling transfers heat more efficiently, allowing the projector to run cooler and quieter — perfect for immersive movie watching.

Q2: Is there a risk of liquid leaking inside the projector?
A: No. The cooling system is a fully sealed loop, designed specifically for consumer electronics. It prevents leakage and ensures safe, stable operation for long hours of use.

Q3: How does liquid cooling improve the viewing experience?
A: By reducing fan noise and maintaining stable brightness over time, liquid cooling keeps the projector whisper-quiet and ensures consistent image quality even after hours of playback.

Q4: Isn’t liquid cooling just a gimmick?
A: Not at all. Smartphones like the iPhone 17 Pro have also adopted liquid cooling to manage heat for high-performance chips. Dangbei was the first to bring this proven technology into projectors, addressing real pain points like noise and overheating.

Q5: Does liquid cooling make the projector more expensive or harder to maintain?
A: While the technology adds engineering complexity, it doesn’t make the projector harder to maintain. Users don’t need to refill or service the cooling liquid — the system is sealed and built to last for the life of the device.

Q6: What other innovations has Dangbei pioneered in projectors?
A: Beyond liquid cooling, Dangbei has been an early leader in adopting laser light sources for home projectors, pushing the industry forward with brighter, more durable, and more immersive home entertainment solutions.

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