BenQ LK935 4K 5500 ANSI IP5X Dustproof Projector

Projector
Smart projector
Screen size compatibility The different screen sizes which the device can work with.	3810 - 5080 mm (150 - 200")
Projector brightness	5500 ANSI lumens
Projection technology	DLP
Projector native resolution	2160p (3840x2160)
Contrast ratio (typical) The difference in light intensity between the brightest white and the darkest black.	3000000:1
Native aspect ratio The aspect ratio is the ratio of the width of an image to its height. The native aspect ratio is the one which the projector/display is particularly designed for. Images shown in native aspect ratio will utilize the entire resolution of the display and achieve maximum brightness. Images shown in other than native aspect ratio will always have less resolution and less brightness than images shown in native aspect ratio.	16:9
Number of colours	1.07 billion colours
Vertical scan range	15 - 135 Hz
3D vertical scan range	23 - 240 Hz
Keystone correction, horizontal	-30 - 30°
Keystone correction, vertical	-30 - 30°
Colour gamut	92%

Light source
Light source type	Laser
Service life of light source	20000 h
Service life of light source (economic mode)	30000 h

Lens system
Focal length range Measure of how strongly the system converges or diverges light. For an optical system in air, it is the distance over which initially collimated rays are brought to a focus. A system with a shorter focal length has greater optical power than one with a long focal length; that is, it bends the rays more strongly, bringing them to a focus in a shorter distance.For an optical system in air, the effective focal length (f and f′) gives the distance from the front and rear principal planes (H and H′) to the corresponding focal points (F and F′).	8.6 - 9.4 mm
Fixed aperture	1.809
Zoom capability The amount that the camera lens can zoom.
Zoom ratio Measures how much the camera can adjust its focus for distance shots. A 3x zoom ratio changes the camera's focal length by a factor of three, from 35 mm to 105 mm for example.	1.6:1
Throw ratio	1.36 - 2.18
Horizontal lens shift range	-23 - 23%
Vertical lens shift range	-60 - 60%

Video
Full HD Full High Definition (HD) means that a display supports a resolution of 1920 x 1080 pixel, and has a digital TV connection.
3D The device can be used with 3D technology.
Supported graphics resolutions The graphic resolutions that can be displayed by the device. The graphic resolution describes the width and height dimensions of a display, such as a computer monitor, measured in pixels.	640 x 480 (VGA), 3840 x 2160

Ports & interfaces
HDMI connector type	Full-size
HDMI version	2.0b
HDBaseT port
USB 2.0 ports quantity Number of USB 2.0 ports (connecting interfaces) in the device. USB 2.0 was released in April 2000 (now called "Hi-Speed"), adding higher maximum signaling rate of 480 Mbit/s (effective throughput up to 35 MB/s or 280 Mbit/s), USB 2.0 ports are usually black.	1
USB 2.0 Type-A ports quantity	1
Audio (L/R) in The two sockets (ports) for receiving left audio signal (white cable) and right audio signal (red cable).	1
Audio (L/R) out The two sockets (ports) for transmitting left audio signal (white cable) and right audio signal (red cable).	1
Serial interface type	RS-232
VGA (D-Sub) ports quantity Number of VGA (D-Sub) ports (connecting interfaces) in the device. The VGA (D-Sub) connector is a 15 pin connector between a computer and a monitor. It was first introduced in 1987 by IBM.	1
S/PDIF out port S/PDIF (Sony/Philips Digital Interconnect Format) is a digital audio interconnect used in consumer audio equipment over relatively short distances. The signal is transmitted over either a coaxial cable with RCA connectors or a fibre optic cable with TOSLINK connectors.
HDMI ports quantity The number of sockets (ports) for HDMI connections. HDMI (High-Definition Multimedia Interface) is a compact audio/video interface for transferring uncompressed video data and compressed/uncompressed digital audio data from a HDMI-compliant device ("the source device") to a compatible computer monitor, video projector, digital television, or digital audio device. HDMI is a digital replacement for existing analog video standards.	2
3D sync port
3G-SDI input	1
3G-SDI output
AC (power) in
DC-in jack The socket/plug where the DC electricity supply connects to the device.
Audio Return Channel (ARC)

Network
Ethernet LAN An Ethernet LAN (Local Area Network) interface is present, for a wired conection via a cable.
Ethernet LAN (RJ-45) ports Number of Ethernet LAN (RJ-45) ports (connecting interfaces) in the device. Ethernet LAN (RJ-45) ports allow a computer to connect to the ethernet.	1
Wi-Fi Popular technology that allows an electronic device to exchange data or connect to the internet wirelessly using radio waves.

Features
HDCP High-bandwidth Digital Content Protection (HDCP) is a form of digital copy protection to prevent copying of digital audio and video content as it travels across connections.
HDCP version	2.2

Multimedia
Built-in speaker(s) The device contains speaker(s) to produce sound.
RMS rated power RMS (Root mean square) is a measure of the continuous power required by a device, in particular audio amplifiers and loudspeakers.	10 W
Number of built-in speakers	1

Design
Market positioning Under which category can the device be positioned in the market, e.g. camera phone.	Business
Product type The sub-category of the product.	Standard throw projector
Product colour The colour e.g. red, blue, green, black, white.	White

Display
Built-in display A display which is part of the product, so you do not need to attach another display.

Power
Power source What is providing power for the product e.g. mains electricity.	AC
Power consumption (typical) Amount of power consumed by this model, often expressed in watts (W). Typical values that manufacturers give are power consumption when off, standby/suspended mode, typical use, maximum usage.	405 W
Power consumption (standby) The amount of electricity that is consumed when the product is on standby.	0.5 W
Power consumption (max) The maximum amount of power used by the device.	520 W
AC input voltage The voltage of the AC electricity that is inputted into the product.	100 - 240 V
AC input frequency	50/60 Hz
Cord length The distance from one end of the cord (cable) to the other.	1.8 m

Operational conditions
Operating temperature (T-T) The minimum and maximum temperatures at which the product can be safely operated.	0 - 40 °C

Weight & dimensions
Width The measurement or extent of something from side to side.	416 mm
Depth The distance from the front to the back of something.	351 mm
Height The measurement of the product from head to foot or from base to top.	166 mm
Weight Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.	7 kg

Technical details
Image lag time	33.4 ms

Other features
Security updates end date	31/12/2026