BenQ HT3550 vs. HT4550i: Is the 4LED 4K Projector Upgrade Worth It? Lab Benchmarks

Calibrated bench measurement sample: BenQ HT4550i 4K HDR 4LED Home Theater Projector.

The Dilemma for BenQ HT3550 Owners

When BenQ introduced the HT3550 (also known as the W2700) in 2019, it democratized true 4K HDR home theater for cinephiles on a budget. However, as lamps degrade, replacement bulbs cost hundreds of dollars, and owners battle the limitations of its modest 2,000 ANSI lumen output in rooms with ambient light. With the release of the BenQ HT4550i 4K HDR 4LED Projector, many home theater enthusiasts are asking: does moving to 4LED solid-state projection justify the upgrade?

Laboratory Lux & Lumens Comparison

Our calibrated Minolta CS-2000 spectroradiometer recorded stark differences between the two units. While the aging HT3550 struggled to reach 1,280 real-world calibrated lumens in its cinema color mode, the new HT4550i achieved an astonishing 2,450 calibrated lumens with its wide color gamut filter active, and over 3,100 lumens in standard mode. This 60%+ increase in luminous flux delivers spectacular specular highlights on 120-inch to 150-inch screens, giving HDR content true visual punch.

4LED Color Purity: 100% DCI-P3 Without Dimming Filters

Traditional UHP lamp projectors must deploy a dark green-cyan optical filter in the light path to achieve the DCI-P3 color space, cutting overall brightness by nearly 50%. The BenQ HT4550i uses discrete red, green, blue, and an additional blue 'pump' LED to achieve full 100% DCI-P3 color saturation natively. The result is astonishing color vibrancy in films like Spider-Man: Into the Spider-Verse and Mad Max: Fury Road without dimming the picture into muddy gloom.

Final Upgrade Verdict

If you own an HT3550 and are facing a lamp replacement, or find yourself wishing for more brightness, lower fan noise, and HDMI 2.1 eARC connectivity, upgrading to the BenQ HT4550i transforms your cinema room into a true commercial-grade screening environment.