Product comparison · 2 data projectors

Acer HL6521G Standard throw projector 4000 ANSI lumens DLP 1080p (1920x1080) 3D White vs BenQ LH655 Standard throw projector 4000 ANSI lumens DLP 1080p (1920x1080) 3D White

34specifications compared
16differ
18identical
47known for one product only

Key differences

The BenQ LH655 Standard throw projector 4000 ANSI lumens DLP 1080p (1920x1080) 3D White has 0.3 :1 more zoom ratio than the Acer HL6521G Standard throw projector 4000 ANSI lumens DLP 1080p (1920x1080) 3D White (1.3:1 vs 1:1). The BenQ LH655 Standard throw projector 4000 ANSI lumens DLP 1080p (1920x1080) 3D White has 3 dB more noise level than the Acer HL6521G Standard throw projector 4000 ANSI lumens DLP 1080p (1920x1080) 3D White (32 dB vs 29 dB). The Acer HL6521G Standard throw projector 4000 ANSI lumens DLP 1080p (1920x1080) 3D White has 20 W more power consumption (typical) than the BenQ LH655 Standard throw projector 4000 ANSI lumens DLP 1080p (1920x1080) 3D White (195 W vs 175 W). Only the BenQ LH655 Standard throw projector 4000 ANSI lumens DLP 1080p (1920x1080) 3D White has Ethernet LAN. Contrast ratio (typical): 1:3500000 on the Acer HL6521G Standard throw projector 4000 ANSI lumens DLP 1080p (1920x1080) 3D White, 3000000:1 on the BenQ LH655 Standard throw projector 4000 ANSI lumens DLP 1080p (1920x1080) 3D White.

Contrast ratio (typical)
- HL6521G Standard throw projector 4000 ANSI lumens DLP 1080p (1920x1080) 3D White:1:3500000
- LH655 Standard throw projector 4000 ANSI lumens DLP 1080p (1920x1080) 3D White:3000000:1
Native aspect ratio
- HL6521G Standard throw projector 4000 ANSI lumens DLP 1080p (1920x1080) 3D White:16:10
- LH655 Standard throw projector 4000 ANSI lumens DLP 1080p (1920x1080) 3D White:16:9
Light source type
- HL6521G Standard throw projector 4000 ANSI lumens DLP 1080p (1920x1080) 3D White:Lamp
- LH655 Standard throw projector 4000 ANSI lumens DLP 1080p (1920x1080) 3D White:Laser
Focal length range
- HL6521G Standard throw projector 4000 ANSI lumens DLP 1080p (1920x1080) 3D White:15.84 - 17.44 mm
- LH655 Standard throw projector 4000 ANSI lumens DLP 1080p (1920x1080) 3D White:16.901 - 21.6076 mm
Zoom ratio
- HL6521G Standard throw projector 4000 ANSI lumens DLP 1080p (1920x1080) 3D White:1:1
- LH655 Standard throw projector 4000 ANSI lumens DLP 1080p (1920x1080) 3D White:1.3:1
Serial interface type
- HL6521G Standard throw projector 4000 ANSI lumens DLP 1080p (1920x1080) 3D White:RS-232
- LH655 Standard throw projector 4000 ANSI lumens DLP 1080p (1920x1080) 3D White:RJ-45, RS-232
Ethernet LAN
- HL6521G Standard throw projector 4000 ANSI lumens DLP 1080p (1920x1080) 3D White:No
- LH655 Standard throw projector 4000 ANSI lumens DLP 1080p (1920x1080) 3D White:Yes
Noise level
- HL6521G Standard throw projector 4000 ANSI lumens DLP 1080p (1920x1080) 3D White:29 dB
- LH655 Standard throw projector 4000 ANSI lumens DLP 1080p (1920x1080) 3D White:32 dB

Side by side

Differences highlightedShow differences only

Comparison of HL6521G, LH655
81 specifications	A Acer HL6521G Standard throw projector 4000 ANSI lumens DLP 1080p (1920x1080) 3D White Model HL6521G View product	B BenQ LH655 Standard throw projector 4000 ANSI lumens DLP 1080p (1920x1080) 3D White Model LH655 View product
Projector2 differ
Projector brightness	4000 ANSI lumens	4000 ANSI lumens
Projection technology	DLP	DLP
Projector native resolution	1080p (1920x1080)	1080p (1920x1080)
Contrast ratio (typical)Differs	1:3500000	3000000:1
Native aspect ratioDiffers	16:10	16:9
Smart projectorKnown for one	Unknown — not stated by the source	No
Screen size compatibilityKnown for one	Unknown — not stated by the source	0 - 2540 mm (0 - 100")
Number of coloursKnown for one	Unknown — not stated by the source	1.07 billion colours
Horizontal scan rangeKnown for one	Unknown — not stated by the source	15 - 102 kHz
Vertical scan rangeKnown for one	Unknown — not stated by the source	23 - 120 Hz
Keystone correction, horizontalKnown for one	Unknown — not stated by the source	40°
Keystone correction, verticalKnown for one	Unknown — not stated by the source	40°
Supported aspect ratiosKnown for one	4:3, 16:10	Unknown — not stated by the source
Projection distanceKnown for one	1 - 10 m	Unknown — not stated by the source
Projector brightness (economic mode)Known for one	3200 ANSI lumens	Unknown — not stated by the source
Light source1 differ
Light source typeDiffers	Lamp	Laser
Service life of light sourceKnown for one	Unknown — not stated by the source	20000 h
Service life of light source (economic mode)	30000 h	30000 h
Lens system2 differ
Focus	Manual	Manual
Focal length rangeDiffers	15.84 - 17.44 mm	16.901 - 21.6076 mm
Aperture range (F-F)Known for one	Unknown — not stated by the source	2.43 - 2.78
Zoom capabilityKnown for one	Unknown — not stated by the source	Yes
Zoom ratioDiffers	1:1	1.3:1
Throw ratioKnown for one	Unknown — not stated by the source	1.13 - 1.47
OffsetKnown for one	Unknown — not stated by the source	113%
Zoom typeKnown for one	Manual	Unknown — not stated by the source
Video1 differ
Analog signal format systemKnown for one	Unknown — not stated by the source	Not supported
Full HD	Yes	Yes
3D	Yes	Yes
Supported graphics resolutionsDiffers	1920 x 1080 (HD 1080), 3840 x 2160	640 x 480 (VGA), 1920 x 1080 (HD 1080)
Supported video modesKnown for one	Unknown — not stated by the source	1080p
Video colour modesKnown for one	Unknown — not stated by the source	DICOM simulation mode, Presentation, Vivid
Ports & interfaces1 differ
HDMI ports quantity	2	2
HDMI versionKnown for one	Unknown — not stated by the source	1.4a
Audio (L/R) inKnown for one	Unknown — not stated by the source	1
Headphone outputsKnown for one	Unknown — not stated by the source	1
Serial interface typeDiffers	RS-232	RJ-45, RS-232
PC Audio out	Yes	Yes
AC (power) inKnown for one	Unknown — not stated by the source	Yes
VGA (D-Sub) ports quantityKnown for one	0	Unknown — not stated by the source
DVI portKnown for one	No	Unknown — not stated by the source
USB 2.0 Type-A ports quantityKnown for one	1	Unknown — not stated by the source
Audio (L/R) outKnown for one	1	Unknown — not stated by the source
Network1 differ
Smart TVKnown for one	Unknown — not stated by the source	No
Ethernet LANDiffers	No	Yes
Ethernet LAN (RJ-45) portsKnown for one	Unknown — not stated by the source	1
Wi-Fi	Yes	Yes
Wi-Fi standardsKnown for one	802.11a, 802.11b, Wi-Fi 4 (802.11n), 802.11g, Wi-Fi 5 (802.11ac)	Unknown — not stated by the source
Features1 differ
Noise levelDiffers	29 dB	32 dB
Noise level (economic mode)Known for one	Unknown — not stated by the source	29 dB
HDCPKnown for one	Unknown — not stated by the source	Yes
On Screen Display (OSD)	Yes	Yes
Projection modesKnown for one	Ceiling, Front, Rear	Unknown — not stated by the source
Multimediaidentical
Built-in speaker(s)Known for one	Unknown — not stated by the source	Yes
RMS rated powerKnown for one	Unknown — not stated by the source	15 W
Design1 differ
Product type	Standard throw projector	Standard throw projector
Market positioningKnown for one	Unknown — not stated by the source	Business
Product colour	White	White
PlacementDiffers	Floor, Ceiling	Ceiling
Cable lock slotKnown for one	Unknown — not stated by the source	Yes
Cable lock slot typeKnown for one	Unknown — not stated by the source	Kensington
Displayidentical
Built-in display	No	No
Power1 differ
Power source	AC	AC
Power consumption (typical)Differs	195 W	175 W
Power consumption (standby)	0.5 W	0.5 W
AC input voltageKnown for one	Unknown — not stated by the source	100 - 240 V
AC input frequencyKnown for one	Unknown — not stated by the source	50/60 Hz
Cord lengthKnown for one	Unknown — not stated by the source	1.8 m
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	0 - 40 °C
Weight & dimensions4 differ
WeightDiffers	3.3 kg	3.1 kg
WidthDiffers	322 mm	279.2 mm
DepthDiffers	225 mm	120.5 mm
HeightDiffers	109 mm	224.8 mm
Package depthKnown for one	297 mm	Unknown — not stated by the source
Package heightKnown for one	170 mm	Unknown — not stated by the source
Package weightKnown for one	5.2 kg	Unknown — not stated by the source
Packaging content1 differ
Remote control included	Yes	Yes
Batteries included	Yes	Yes
Cables includedDiffers	Power	AC, HDMI
ManualKnown for one	Unknown — not stated by the source	Yes
Carrying caseKnown for one	Yes	Unknown — not stated by the source

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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