Back in the earlier days, our team purchased a Sony projector, which was undoubtedly costly. However, it was bulky, difficult to handle, and came with intricate controls. Additionally, the fan noise during operation was quite bothersome. Clearly, it wasn't the most user-friendly option. But thanks to advancements in projection technology, we now have access to miniature projectors that are much more compact and lightweight. These mini projectors offer a more portable design compared to traditional ones, and they are also more budget-friendly, making them highly popular among regular users.
Cool LeTV, a company that has long been dedicated to the projection display industry, has released several popular miniature projectors. One of their standout models is the Cool Le Q7, which gained significant attention after its release. Just months later, they introduced an upgraded version, the Q7S, boasting 170 ANSI lumens brightness, autofocus capability, 32GB internal storage, a touch panel, HDMI inputs, and an all-glass lens, among other practical features. So, how does this tiny projector perform? Let's dive in.
The packaging is sleek and modern, featuring a predominantly white design with the letter "Q" in the center, representing the series model. Lifting the lid reveals a thin sponge layer protecting the contents from any potential damage during transit. Each accessory is neatly stored in its own compartment, ensuring that everything remains undamaged during shipping.
Cool Music’s Q7S is primarily white, crafted from a high-strength poly material with a glossy finish. The surface feels incredibly smooth, almost silky, and the minimalist design only features the Cool Music logo on the front. Interestingly, the Q7S also includes a touch panel similar to those found on laptops, allowing users to navigate easily with just a swipe of their finger.
On the back, there are ventilation slots, a stand mount, and standard tripod screw holes. Each corner has a rounded protrusion, aiding both heat dissipation and preventing slippage when placed on a flat surface. The interface is quite comprehensive, featuring power, HDMI, infrared remote control, USB, and a 3.5mm headphone jack ports. The USB port allows for connecting external storage devices like USB drives or hard disks to play local high-definition videos, while also enabling the connection of peripherals like keyboards and mice for basic office tasks. The HDMI port facilitates connections to other devices such as gaming consoles or computers for large-screen viewing.
Buttons on the right side of the device include the power button, Focus+, and Focus-. Despite the Q7S's autofocus feature, there are instances where slight movements of the stand might require manual fine-tuning for optimal focus clarity.
The lens of the Cool LeQi Q7S utilizes five full-glass aspheric high-definition lenses. Known for their high refractive index, these lenses provide excellent clarity and reduce the risk of focus loss. Additionally, the glass is durable, effectively preventing scratches. The light source employs a 3A high-current LED green light source with a lifespan of up to 30,000 hours. Cool Music claims that the Q7S offers 170 ANSI lumens brightness, which is considered high for a miniature projector.
Cool Music's Q7S supports a 0.9 short throw ratio, allowing for large projections even in small spaces. It also features double trapezoidal correction, with horizontal ±30° manual adjustment and vertical ±40° automatic adjustment. This means that even if the projector isn't perfectly aligned, it can still project a square screen. The Q7S also incorporates OFFSET off-axis technology, enabling corrections with a slight angle on a horizontal desk, ensuring a complete picture.
With a brightness of 170 ANSI lumens, how does the Cool Q7S perform in daylight? To find out, I tested it in a semi-transparent curtained room during the brightest part of a sunny afternoon. Using a camera tripod, the Q7S mounted smoothly. Upon powering on, the Q7S automatically focused within seconds—usually within 2-3 blinks. Even at 4 PM, when sunlight was at its peak, the display remained crisp and clear. While cameras may struggle to capture such brightness levels, the human eye perceives it as vivid and sharp.
Comparing daytime versus nighttime performance, the results speak for themselves. At 4 PM on a bright afternoon, despite semi-transparent curtains, the Q7S managed to deliver a clear image, showcasing its impressive capabilities.
The actual resolution of the Cool Music Q7S is 854 x 480, but it supports 1080p resolution, offering surprisingly good projection quality. Details like hair textures remain visible, proving its capability to deliver high-quality visuals.
The Q7S runs on a large-screen OS based on Android 4.4, customized for projection with a simple interface featuring large icons for easier remote control. The primary screen displays options for online videos, file browsers, wireless mirroring, apps, settings, and secondary screens include an app store, OTA updates, HDMI, user manuals, and AirPlay. Ads for Cool Music appear on the left side of both interfaces.
Equipped with a quad-core smart processor and 1GB RAM + 32GB ROM, the Q7S supports dual-band Wi-Fi for faster and smoother network connections. It also supports H.265 intelligent decoding and full-format playback. Content-wise, Cool Music holds licenses from major providers like Galaxy, GITV, and iQiyi, ensuring a rich library of online videos.
Additional video applications can be installed via online stores, enabling features like live streaming. During the recent Champions League final, watching on a 51-inch screen from just one meter away with the Q7S provided an immersive experience.
USB drives can also be used to play local videos, with smooth playback of 1080p videos, including fast-forward and rewind functions. The Q7S features a 5000mAh high-energy polymer battery, providing up to 90-120 minutes of continuous playback, sufficient for watching a movie or 2-3 episodes of a TV series. Combined with its 32GB storage capacity, it can hold numerous movies. Whether traveling or without internet access, Q7S can play local videos on a large screen, sharing the joy of cinema with friends.
In conclusion, the Cool Q7S performs exceptionally well as a miniature projector, with 170 ANSI lumens brightness ensuring clear images even in well-lit rooms. Its rich content, smooth playback, and 5000mAh battery make it versatile for various viewing environments. Cool Music Q7S allows users to immerse themselves in the captivating world of light and shadow, whether at home or on the go.
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