The Vivitek DH3660Z is a 1080p (1920 x 1080) resolution, DLP projector intended for business and education environments, though it is primarily positioned as a projector most suitable for conference rooms or meeting rooms. Nicely bright at 4,500 lumens, the image seems even more vivid thanks to its laser light engine.

This projector would also be at home in K-12 Classrooms, multipurpose rooms, small auditoriums, museums, and houses of worship in addition to conference rooms, meeting rooms, board rooms, other office environments, and even medical classrooms and facilities, thanks to its DICOM SIM. Mode.

We’ll begin with a brief overview of the projector and a preview of its highlights before starting a deeper discussion of its special features. We’ll take a close look at the projector’s hardware, then get into the good stuff – the projector’s picture quality and performance. I’ll summarize everything for you on our last page, as well as provide some insights into the competition and this projector’s pros and cons.

We wish to thank Epson America for sponsoring this year’s Best Classroom Projectors Report. 

The Vivitek DH3660Z is a laser projector with a lifespan of up to 20,000, as is typical for laser projectors. This projector will outlast your use for it – that is, it will still be running strong and bright well after you’re ready for an upgrade in resolution or features. In a typical 180-day school year, with heavy 6 hours a day use, this projector will last for up to 18.5 years. Other environments that use the projector less often may expect this Vivitek to last even longer.

This is a 1080p projector, which is somewhat of a rarity in business and education projectors. Typically, we’ll see projectors with either WXGA resolution (1280 x 800), or WUXGA resolution (1920 x 1200). WXGA resolution is the business and education world’s 720p, and WUXGA is their 1080p. The difference here lies in screen height/aspect ratio. These two resolutions are just a tad taller than their home theater resolution counterparts and have a 16:10 aspect ratio rather than the usual 16:9.

If pairing the Vivitek DH3660Z with a 16:10 screen that you already have installed, the picture will be just a smidge shorter vertically than your screen. Not a big deal, but something to consider when purchasing. If this Vivitek will be the first projector installed in your space, pair it with a 16:9 screen. Other than that, 1080p and WUXGA are one and the same – WUXGA is just a couple hundred pixels taller.

The DH3660Z has an MSRP of $2,499 and began shipping in September of 2019 – so no street price as of yet. Still, $2,499 is highly competitive for a 1080p laser projector! Laser projectors always have higher price points than their lamp based cohorts. This higher upfront cost is balanced out by the cost of ownership overtime, which is lower than lamp based projectors.

Every several thousand hours or so, you’ll need to change out a lamp, which costs several hundred dollars for the lamp plus cost of installation. Multiply that over several years, and you’ll find the difference in cost between laser based and lamp based projectors to be pretty even. With lasers, it’s really more of a one-and-done experience, since the laser light engine lasts 20,000 hours before you have to do anything about it. For many, that low maintenance offers a peace of mind that far outweighs the additional upfront cost.

The Vivitek DH3660Z is a no-nonsense, plug-and-play sort of fellow with not a lot of bells and whistles. This is just the sort of projector many are looking for. Does it look good? Does it serve our purposes? If these are the two most important things to you, chances are this Vivitek is one to consider. Let’s get into those highlights before diving deeper into the Vivitek DH3660Z’s special features.

The Epson PowerLite L400U is a WUXGA (1920 x 1200) 3LCD laser projector intended for larger meeting spaces and the field of higher education. WUXGA is the business and education world’s 1080p, and offers full 1080p support. This $2,499 projector features some pretty awesome color, brightness and excellent clarity and will suit many medium-sized auditoriums and large university lecture halls well. Epson claims a brightness of 4,500 lumens, which simply tears through some fairly heavy ambient light. It’s equipped an RJ-45 network port for interfacing with existing networks, and supports an optional wireless module for WiFi connectivity. Once connected to a network, this projector accepts connections from smart Android and iOS devices via the free Epson iProjection App. It also offers support for USB mass storage.

This projector is part of Epson’s PowerLite L Series, and has 6 siblings! That’s not really a surprise from Epson, as they are they have the largest market share of projectors by a long shot – around 50%. This family of laser projectors includes the WXGA L500W and L610W models, with a list price of $1,999 and $2,599 respectively. The L610 XGA model at $2,399, and of course, the WUXGA models of L510U, L610U, and L615U, at $2,799, and $3,499 for the L610U and L615U. This family’s brightness ranges from 4,500 lumens to a wall-melting 6,000, and offers vertical Lens Shift and a zoom ratio of 1.60:1 for good placement flexibility.

At $2499, the L400U is the lowest priced WUXGA laser projector we’ve found yet, to review.  It's also worth mentioning that Epson's L500 (at $1999) is tied for the least expensive WXGA laser projector we’ve reviewed.

We wish to thank Epson America for sponsoring this year’s Best Classroom Projectors report.  

This review of the Epson PowerLite L400U laser projector will start off with a quick overview and a list of highlights. Then, we’ll list and discuss some of the special features this projector offers. Following that, we’ll take a tour of the hardware. We’ll discuss picture and audio quality (yes, this model has audio!) before taking a look at just how well the L400U performed and if it met our expectations. We’ll finish off with a summary page where – you guessed it – we’ll summarize this review. By the end of our journey, you should have a pretty good idea if the Epson PowerLite L400U will meet your needs for a high-resolution laser installation projector.  And off we go!

Epson’s PowerLite L400U is a 4,500 lumen laser projector with WUXGA (1920 x 1200) resolution powered by 3LCD technology. 3LCD projectors offer a significant advantage over DLP projectors in that they offer as many color lumens as white lumens, whereas on a typical DLP business and education projector, you would have to expect to sacrifice more brightness than with 3LCDs for great color.

At Projector Reviews, we measure the brightness the projector puts out in each preset picture mode.  While we will certainly let you know if it meets the manufacture claim, what is far more important than the number of lumens is how well did it perform? We’ll discuss that on the Performance Page.

Another advantage for 3LCD over DLP - there’s also none of that annoying rainbow effect which, if you’re like me and, perhaps ~5% of the population, and you are bothered by it, 3LCD offers a real advantage.

The L400U measures in at 5.35 inches tall, by 17.32 inches wide and 11.97 inches deep, weighing in at 17.1 lbs. This projector is likely to find a home in a higher education classroom, lecture hall or large meeting space in a ceiling mounted configuration. Its vertical Lens Shift and 1.60:1 zoom lens gives this projector some good placement flexibility – a vital asset in these larger venues. This bright projector is capable of projecting images as large as 500 inches diagonally for some of the larger screens. We have a saying here – there’s always trade-offs – and when you project a larger image, you trade away brightness.

Now, because it's such an absurd thing to say, I need to say something about it.  While this projector may be capable of focusing to an image 500 inches diagonally, the amount of brightness you would loose would be tremendous.  Folks who need an image that large are not even looking at this price point - and rightly so - as they need a projector with brightness in the range of 10,000 to 25,000 lumens or more, in the expected price range of no less than $15,000 to $20,000.  Obviously, any practical use of the L400U will be on a much smaller screen than its theoretical 500 inches.

This projector offers just about everything you’ll need for use in business and higher education, from Crestron support, to Miracast, wired networking, wireless networking via an optional wireless module, a good compliment of inputs and connectors including dual HDMI, VGA and Audio-In MiniJacks, and the DICOM SIM. color mode for use in the medical field.