Acer K335 LED Portable Projector Review
The Acer K335 is a versatile WXGA (1280 X 800) DLP pocket projector with enough light output to deal with less than ideal lighting conditions despite its small size.
|Acer K335 Specs|
|Brightness (Manufacturer Claim)||1000|
|Zoom Lens Ratio||None|
|Lamp Life||20,000 hours|
|View Full Specifications Here >>|
Acer K335 Projector Highlights
- Small and Lightweight 2.87 lbs
- Good light output with near to 700 lumens (measured)
- HDMI and Analog VGA inputs
- Supports MHL for use with compatible MHL equipped mobile/portable devices
- Ability to display from iPads - iPhones (w/ iOS 5.0 or later) and Android tablets – phones (w/ Andorid 4.0 or later) with optional adapters/cables and ‘eDisplay’ App software
- Can play media files from SD cards or USB flash drives
- 3D capable for computer-based 3D sources (not Blu-ray 3D compatible)
- Built-in mono speaker suitable for use in small conference rooms
- Can support wireless (Wi-Fi) input with an optional adapter
- Short lag times make the model suitable for gaming
Acer K335 Projector Overview
The Acer K335 projector is a WXGA (1280 X 800) DLP projector that offers an increase in light output from the earlier Acer K330 model (K330 review HERE). The K335 has a similar size, weight and control layout as the K330. However, the new model has a somewhat different front panel layout for the lens and IR remote sensor while the rear panel connector layout is very similar to the earlier model The K335 is rated to 1000 lumens, which is double the rated light output of the earlier K330 model. In our tests neither the K330 nor the K335 were measured to produce the manufacturer’s rated light output, but the K335 is significant brighter than the K330, as well as producing more lumens of light output than most other competitors LED portable/pocket projectors. This makes the K335 a very versatile pocket projector that offers adequate light output to deal with less than ideal lighting conditions. The K335 LED light source is rated to last 20,000 hours, which is typical for recent LED-based portable projectors. The K335 has a fixed lens, with no optical zooming or optical lens shift. It does offer a digital zoom function but this simply enlarges a portion of the image and is not a substitute for an optical zoom lens. As a result, the K335 will need to be placed at the proper distance from the screen in order to obtain the image size desired. Also it will need to be positioned at the proper height relative to the screen, if use of digital keystone correction is to be avoided. When the ideal projector height (relative to the screen) cannot be provided the K335 has very good automatic digital keystone correction to facilitate setup. The works thru the K335 having an internal tilt sensor that applies the correct amount of keystone correction within a couple of seconds after the tilt of the projector is changed. The K335 has a throw ratio of approx. 1.25:1 meaning with a projector-to-screen throw distance of 8 feet (96 inches) the image will be about (96/1.25=) 76 inches wide. Note this the width of the image and not the diagonal size. The K335′s rear panel offers connection for the most common video inputs, including HDMI, VGA and composite video as well as an analog audio input. It can also project from a USB thumb drive, an SD card, from an iPad /iPhone (w/ iOS 5.0 or later and with optional adapter), or from Android tablets/phones (w/ Android 4.0 or later). The K335 has provisions for displaying not only photos, video and audio files directly from a USB or SD memory card, but the K335 can also display Microsoft Office documents. This capability for PC-free presentations could be a useful feature on a portable mini-projector for the ‘road warrior’ that likes to travel light
There is also a built-in three watt speaker that is adequate only for small rooms, but fortunately, there is also an audio output jack for use with amplified external speakers. The K335’s light weight and compact size makes it a good choice for traveling. Like many other small, portable projectors the K335 does not have a battery option, but with the relatively high light output of the K335, a battery option is probably not feasible. Unlike some other small portable projectors, the K335 has its power supply is built in, so it only uses a standard power cord, thus improving its portability. The K335 also comes with a nice carrying case with a front pocket just large enough to accommodate the remote control, power cable and a couple small accessories (e.g., memory card, HDMI cable). The Acer K335’s combination of fairly high light output (for this class of projector), decent contrast, acceptable color accuracy, long LED light source life, and modest price will appeal to those in the market for a pico or pocket projector for business use, but need more lumens of light output than is found in many projectors in this class.
Acer K335 Special Features
20,000 Hour LED Life – The Acer K335 uses an LED light source that is rated to last 20,000 hours. This is likely longer than the life of the projector
Presentations from USB flash Drive, SD Card, iPhone/iPad/iPod or Android tablet/phone – The Acer K335 has built-in ports allowing for presentations from a USB flash drive or SD memory card. Through the use of an optional adapter, the Acer K335 can present photos and videos from iPhone/iPad/iPod or from an Android tablet or phone.
Display of Microsoft Office Documents -The K335 can directly accept Word, Excel and Powerpoint files from a SD memory card or USB drive and project the contents of the document. The allows for MS Office documents to simply be loaded into the projector from a flash memory drive (USB or SD card) without the need to connect a PC to the projector. The Acer documentation does not specifically indicate which versions of MS Office documents are supported.
Game Ready - The Acer K335 has ‘Game’ mode and along with a relatively short lag time make this model suitable for gaming.
3D Ready – The Acer K335 is 3D ready via its implementation of DLP Link. It can only accept 3D from a suitably equipped source (e.g., PC) that is capable of providing 3D in a alternating frame mode. The K335 is not compatible with the most common 3D video signal formats that are used with Blu-ray Discs and for 3D channels distributed by satellite or cable TV services. The 3D capabilities of the K335 were not evaluated for this review.
Support for Wireless Input - The K335 supports a WiFi input with the addition of an optional Wi-Fi adapter. The Acer Wi-Fi adapter was not provided with the review unit and as a result the Wi-Fi capabilities of the K335 were not evaluated for this review.
This projector review is included in our 2014-2015 Best Classroom Projectors Report, which is sponsored by Epson America.
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