New Zealand · costs in NZD
LED-backlit LCD · 50"
Sony KD-50X77L TV
Sony KD-50X77L is a 50-inch LED-backlit LCD television registered for sale in New Zealand under the trans-Tasman E3 energy rating scheme (registration ATV5480).
- Screen size
- 50"
- 126 cm, LED-backlit LCD
- Energy rating
- 4
- Annual electricity use
- 345 kWh
- Label: 348 kWh · 0.09 kWh per hour on
- Estimated running cost
- $114 / year
- $1,138 over 10 years
- Power when on
- 94 W · 0.5 W standby
23% more electricity than the median of 279 comparable 48–50 inch TV registrations (284 kWh a year on the label basis). It uses less than 12% of them. At your rates that is about $21 a year more than the median, $209 over 10 years.
How efficient is it for its size?
Cohort: every currently registered 48–50 inch TV sold in New Zealand, counted once per registration, on the label usage basis.
Tvs that use less electricity
Same type and size group, at least 3% lower annual kWh on the label basis.
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| LG 50UJ660H5LD50"141 kWh/yr | 8 | $47 | |
| LG 50UM662H4LC50"149 kWh/yr | 7 | $49 | |
| Konic KUD50SG696AS50"172 kWh/yr | 7 | $57 | |
| Philips 49HFL5011T/1249"175 kWh/yr | 7 | $58 | |
| Coocaa 50Q66CK50"175 kWh/yr | 7 | $58 |
kWh and cost on the label usage basis; the product page adjusts to your usage.
Tvs similar to the Sony KD-50X77L
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Sharp 4T-C50DK1X50"312 kWh/yr | 4.5 | $103 | |
| Konic KUD50GS677AM50"327 kWh/yr | 4 | $108 | |
| Hisense 50Q6S series50"199 kWh/yr | 6 | $66 | |
| LG 50UM662H0LC50"149 kWh/yr | 7 | $49 | |
| Coocaa 50Q66CK50"175 kWh/yr | 7 | $58 | |
| LG 50UJ660H5LD50"141 kWh/yr | 8 | $47 | |
| Konic KUD50SG696AS50"172 kWh/yr | 7 | $57 |
kWh and cost on the label usage basis; the product page adjusts to your usage.
Other Sony models of similar size
| Model | Stars | Est. cost / yr | Compare |
|---|---|---|---|
| Sony K-50S3050"310 kWh/yr | 4.5 | $102 |
kWh and cost on the label usage basis; the product page adjusts to your usage.
Compare KD-50X77L with another TV
Sony KD-50X77L specifications
- Screen size (diagonal)
- 125.7 cm (49.5")
- Screen area
- 6,751 cm²
- Screen technology
- LED-backlit LCD
- On-mode power
- 93.8 W
- Passive standby power
- 0.50 W
- Active standby power
- 12.30 W
- Power supply
- Internal
- Tuner
- Analogue/Digital
- Annual energy (label)
- 348 kWh
- Star rating index
- 4.11
- Country of manufacture
- Vietnam
New Zealand E3 registration details
- Registration number
- ATV5480
- GEMS registration id
- 152286
- Status
- approved, available (self-reported)
- Registration expires
- 31 January 2028
- Registered for sale in
- Australia, New Zealand
- Family
- –
- Regulatory standard
- Greenhouse and Energy Minimum Standards (Televisions) Determination 2013
- Test standard
- AS/NZS 62087.1:2010
Source: E3 programme registration data (EECA, New Zealand) (trans-Tasman E3 registration data published by DCCEEW on data.gov.au, CC BY 3.0 AU). Dataset published 20 September 2026; last checked 20 September 2026. Manufacturer: sony.com.au. How the derived figures are calculated.