Epson PowerLite E24 vs NEC NP-UM351W

	Epson PowerLite E24 MSRP $421	NEC NP-UM351W
Key differences
White light output	—	3,500 lm ISO
Native resolution	1024 × 768	WXGA (1280 × 800)
Throw ratio	1.44–2.88:1	0.36:1
Fan noise	Normal 37 dB(A) · Eco 28 dB(A)	Max 37 dB(A) · Normal 29 dB(A) · Eco 28 dB(A)
Price	MSRP $421	—
Room fit80″100″120″150″
Distance to screen	2.9–5.9 m	0.78 m
Brightness
Rated brightness	—	3,500 lmDerived
White light output	—	3,500 lm ISO
Colour light output	3,600 lm	—
Claimed brightness (non-standard)	3,600 lm	—
Display system
Imaging technology	3LCD	3LCD
Chip / panel diagonal	0.55 in	0.59 in
On-screen resolution	1024 × 768Derived	WXGA (1280 × 800)Derived
Native resolution	1024 × 768	WXGA (1280 × 800)
Native aspect	4:3Derived	16:10Derived
Contrast
Dynamic contrast	Up to 15,000:1	4,000:1
Dynamic contrast method	—	Dynamic iris
Colour
Colour bit depth (per channel)	10 bit	10 bit
Calibration
Picture mode memories	—	7
Light source
Light source	Lamp	Lamp
Lamp power	210 W	255 W
Replacement lamp	ELPLP97	—
Light-source life	6,000 h normal · 12,000 h eco	3,800 h max · 5,000 h normal · 6,000 h eco
Warm-up time	—	6 s
Cool-down time	—	0 s
Optics
Throw ratio	1.44–2.88:1	0.36:1
Throw measured from	—	Front of the case
Image size	30–350 in	58–110 in
Projection offset	—	81%
Zoom	Digital	Digital
Focal length	16.7 mm	4.78 mm
Aperture (f-number)	1.44	1.8
Focus	Manual	Manual
Autofocus	—	No
Vertical keystone	30°	10°
Horizontal keystone	30°	10°
Corner correction	—	4-corner
Interchangeable lens	—	No
Inputs & control
HDMI inputs	HDMI	2 × HDMI
HDMI inputs (count)	1Derived	2Derived
Other video inputs	VGA, + Composite	VGA
Max input resolution	—	WUXGA
Audio inputs	3.5 mm, RCA	3.5 mm, RCA, + Microphone
USB media playback	—	Yes
Control ports	RS-232	RS-232
PJLink	—	Class 1
Control-system drivers	—	Crestron
Horizontal scan	—	15–100 kHz
Vertical scan	—	50–120 Hz
Smart platform
Ethernet	—	Yes
Audio
Speaker power	5 W	20 W
Speakers	1	1
Layout	Mono	Mono
Audio outputs	3.5 mm	3.5 mm
HDMI audio return	NoneDerived	NoneDerived
Physical & installation
Dimensions (W × D × H)	302 × 249 × 87 mm	378 × 428 × 112 mm
Weight	2,700 g	5,600 g
Orientations	Table, Ceiling, Rear	Table, Ceiling, Rear
Dust filter	Replaceable	—
Environment & power
Operating temperature	5–40°C	5–40°C
Operating humidity	—	20–80%RH
Altitude	3,048 m	2,600 m · high-altitude mode
Power draw	Normal 349 W · Eco 241 W	Max 337 W · Normal 257 W · Eco 214 W
Standby	Up to 0.3 W	0.39 W
Networked standby	—	2.4 W
Power supply	—	Built in
Mains input	100–240 V · 50/60 Hz	100–240 V · 50/60 Hz
Noise
Fan noise	Normal 37 dB(A) · Eco 28 dB(A)	Max 37 dB(A) · Normal 29 dB(A) · Eco 28 dB(A)
Safety & compliance
Marks	—	FCC, UL
Support & ownership
Warranty	2 yr (light source 3 mo)	3 yr (light source 6 mo or 1,000 h)
User manual	https://files.support.epson.com/docid/cpd6/cpd65860/EN/index.html	https://sharp-displays.jp.sharp/support/webdl/dl_service/data/manual/en/um351w/UM351W_manual_ENG_v3.pdf
Spare parts	Lamp V13H010L97 · Air filter V13H134A32	—
In the box
In the box	Power cord, Remote, + Remote batteries, Quick start guide	Power cord, Remote, Quick start guide, + User manual, + VGA cable, + Stand or mount
Remote	—	IR