LG 47LH4000

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| Screen size | 47 inches (119 cm) | ||
| Resolution | 1920 x 1080 pixels | ||
| HD compatibility (1080i/720p) | Yes | ||
| HD Ready certification | Yes | ||
| Brightness | 500 cd/m² | ||
See all specifications | |||
| Contrast ratio | 80000:1 (Dynamic) |
| Viewing angles (H+V) | 178 ° / 178 ° |
| Response time | 3 ms |
| Sound level | 2 x 10 Watt RMS |
| Connectivity | VGA • HDMI (x3) • SCART (x2) • Component • Composite |
| Dimensions (LxHxW) | 79.93 x 115.32 x 31.9 cm |
| Weight | 22.40 kg |
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Vincent Lheur
Test date: October 05, 2009
Test date: October 05, 2009

Our Readings
| Black levels: | 0.27 cd/m² |
| ANSI contrast: | 744:1 |
| Average gamma: | 2.07 |
| DeltaE on PC: | 5 |
| Relative energy consumption : | 236 W/m² |
| Homogeneity of whites: | 2.8/5 |
| Clouding: | 5/5 |
| Light leak onto dark greys at 45°: | 0.1 cd/m² |
| DeltaE at 45°: | 4.7 |
| Multimedia player: | 0.9/5 |
We take these measuements using the best settings for watching a movie. Cinema mode is generally the one we use. Wherever possible, we set the white levels at 200 cd/m².
See also: How do we test TVs?
There are LED TVs, plasma TVs, TVs with great contrast, multimedia TVs … and then there are TVs with no real distinguishing features.
The LG 47LH4000 falls into this last category. The only original feature worth mentioning could be the inclusion of the TruMotion 100 Hz system.
Build Quality and Design
There are only three HDMI ports for instance, although that will probably be enough for most people. There's no network port, of course, so you're left with a single USB port input for playing MP3s or looking at JPEG photos.
Its design, which is 10 cm thick, makes it huge for a TV.
PC mode works perfectly, as long as you use a HDMI connection with a desktop resolution of 1920 x 1080 pixels. We measured the input lag at 33 ms, one of the best values we've ever seen on a TV.
Image Quality
La
The LH4000 got very close to four stars in this section, but fell short because of how average its performance was overall. The contrast is not quite good enough, blacks could be deeper and ghosting is visible. Things aren't as bad as all that, though, because the viewing angles are quite wide for an LCD TV, the colours are decent and the TruMotion 100 Hz system does eliminate jerkiness (though it doesn't do much for ghosting).
The final result is very average: it's a long way behind today's very best TVs, but it's far from being terrible. The LH4000 won't please the most demanding viewers, but will probably suit people who need a decent extra television.
Sound Quality
Having a bulky frame isn't always a disadvantage: because of the space inside the LH4000, it can produce more bass sounds than some of its thinner competitors. Otherwise, all of the usual problems that we find on TV speakers are there, including sound lacking detail.
Energy Consumption
On standby, this TV only uses 0.25 W, or rather it uses between 0.2 W and 0.3 W. In use, that value rises to 144 W, which is about average for a TV.
The LG 47LH4000 falls into this last category. The only original feature worth mentioning could be the inclusion of the TruMotion 100 Hz system.
Build Quality and DesignThere are only three HDMI ports for instance, although that will probably be enough for most people. There's no network port, of course, so you're left with a single USB port input for playing MP3s or looking at JPEG photos.
Its design, which is 10 cm thick, makes it huge for a TV.
PC mode works perfectly, as long as you use a HDMI connection with a desktop resolution of 1920 x 1080 pixels. We measured the input lag at 33 ms, one of the best values we've ever seen on a TV.

Image QualityLa
![]() Our tests to see how even the panel was also produced average results
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The final result is very average: it's a long way behind today's very best TVs, but it's far from being terrible. The LH4000 won't please the most demanding viewers, but will probably suit people who need a decent extra television.
Sound QualityHaving a bulky frame isn't always a disadvantage: because of the space inside the LH4000, it can produce more bass sounds than some of its thinner competitors. Otherwise, all of the usual problems that we find on TV speakers are there, including sound lacking detail.
Energy ConsumptionOn standby, this TV only uses 0.25 W, or rather it uses between 0.2 W and 0.3 W. In use, that value rises to 144 W, which is about average for a TV.
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Very wide viewing angles for an LCD TV
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Low input lag (which isn't only good for gamers)
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Ghosting too visible
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Weak contrast

This is a very average TV that can only ever hope for a very average score.
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