Epson PowerLite 815E vs LG ProBeam BU50RG

	Epson PowerLite 815E MSRP $3,662	LG ProBeam BU50RG MSRP $3,399
Key differences
White light output	5,000 lm ISO (Normal power, Dynamic mode)	5,000 lm ANSI
Native resolution	1080p (1920 × 1080)	—
Throw ratio	0.16–0.22:1	1.3–2.08:1
HDR formats	HDR10, HLG	—
Fan noise	Normal 35 dB(A) · Eco 26 dB(A)	Max 33 dB(A) · Eco 29 dB(A)
Price	MSRP $3,662	MSRP $3,399
Room fit80″100″120″150″
Distance to screen	0.35–0.49 m	2.9–4.6 m
Brightness
Rated brightness	5,000 lmDerived	5,000 lmDerived
White light output	5,000 lm ISO (Normal power, Dynamic mode)	5,000 lm ANSI
Colour light output	5,000 lm (Normal power, Dynamic mode)	—
Brightness by mode	Normal 5,000 lm · Eco 3,500 lm	—
Eco brightness	70%Derived	—
Display system
Imaging technology	3LCD	DLP
On-screen resolution	1080p (1920 × 1080)Derived	4K UHD (3840 × 2160)Derived
Native resolution	1080p (1920 × 1080)	—
Native aspect	16:9Derived	16:9Derived
Pixel shift	Yes (scheme not stated)	—
Addressable resolution	—	4K UHD (3840 × 2160)
Contrast
Dynamic contrast	Over 2,500,000:1	3,000,000:1
Colour
Colour bit depth (per channel)	10 bit	—
HDR
HDR formats	HDR10, HLG	—
Tone mapping	—	Dynamic
Light source
Light source	Laser (phosphor)	Laser (phosphor)
Light-source life	20,000 h normal · 30,000 h eco	Up to 20,000 h
Life defined as	50% brightness	—
Light output control	Continuous	—
Constant brightness mode	Yes	—
Optics
Throw ratio	0.16–0.22:1	1.3–2.08:1
Image size	80–160 in	40–300 in
Zoom	Digital	Optical
Zoom ratio	—	1.6×Derived
Focal length	2.3 mm	—
Aperture (f-number)	1.8	—
Focus	Manual	Manual
Autofocus	—	No
Vertical lens shift	—	±50%
Horizontal lens shift	—	±20%
Auto keystone	—	No
Grid warp	—	Yes
Interchangeable lens	No	—
Motion & gaming
Frame interpolation (MEMC)	Yes	Yes
Inputs & control
HDMI inputs	2 × HDMI (HDCP 2.3)	2 × HDMI 2.0 (HDCP 2.2)
HDMI inputs (count)	2Derived	2Derived
Newest HDMI version	—	HDMI 2.0Derived
Other video inputs	HDBaseT	—
Max input resolution	DCI 4K	DCI 4K
USB media playback	Yes	Yes
Control ports	RS-232	RS-232
PJLink	Class 2	—
Control-system drivers	Crestron, AMX	—
Smart platform
Wi-Fi	Wi-Fi 5	—
Ethernet	Yes	Yes
Smart platform	—	webOS
OS version	—	6
Storage	—	8 GB
Casting	Miracast	Miracast
Audio
Speaker power	16 W	10 W
Speakers	2	2
Layout	Stereo	—
Audio outputs	—	3.5 mm, HDMI ARC
HDMI audio return	—	ARCDerived
Physical & installation
Dimensions (W × D × H)	695 × 341 × 145 mm	370 × 290 × 156 mm
Weight	12,500 g	9,700 g
Colours	Black	Black, + White
Orientations	Table, Ceiling, Rear	Table, Ceiling, Rear
Ceiling mount	4 × M4, screws ≤ 9 mm	—
Dust filter	Replaceable	—
Environment & power
Operating temperature	0–40°C	0–40°C
Operating humidity	20–80%RH	0–80%RH
Altitude	3,048 m · high-altitude mode	High-altitude mode
Power draw	Normal 398 W · Eco 296 W	Max 400 W
Standby	0.4 W	Up to 0.5 W
Networked standby	2 W	—
Power supply	—	Built in
Mains input	100–240 V · 50/60 Hz	100–240 V · 50/60 Hz
Noise
Fan noise	Normal 35 dB(A) · Eco 26 dB(A)	Max 33 dB(A) · Eco 29 dB(A)
Safety & compliance
Laser class	Class 1 (US: Class 1)	Class 1
Risk group	RG2	RG2
Eye-protection sensor	Yes	—
FDA laser notice	Notice 57	—
Marks	FCC, UL	—
Support & ownership
Warranty	🇺🇸 US 3 yr · 🇨🇦 CA 3 yr	3 yr
User manual	https://files.support.epson.com/docid/cpd6/cpd63352.pdf	—
Spare parts	Air filter V13H134AE0 · Mount V12HB12010	—
In the box
In the box	Power cord, Remote, Remote batteries, + Quick start guide	Power cord, Remote, Remote batteries, + User manual