EnergyLabelEU
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Costs for 0.283 €/kWh · Eurostat 2026 H1

TVs & monitors · 55″ · 3840×2160 · LED LCD

Optoma N3551K

G
Power, SDR
145.0 W
Running cost
€60 / year
4 h a day

What it will cost you

Period N3551K
1 year €60
5 years €300
10 years €600
15 years €899

Power in SDR and HDR

Cost by viewing time

Use kWh / yr € / yr
2 hours a day 106 €30
4 hours a day 212 €60
8 hours a day 423 €120

Label and product sheet

Energy class SDR / HDR
G / –
On-mode power SDR
145.0 W
Standby / networked standby
0.4 W
Screen diagonal
55″
Resolution
3840×2160
Panel
LED LCD
Refresh rate
60 Hz
Software updates (minimum)
8 years
Guarantee (supplier)
3 years
Spare parts (minimum)
7 years

Model numbers and history

Registered by Optoma under one model number.

N3551K

  1. First published in the EU register (EPREL)
  2. Placed on the EU market

Questions

How much does the Optoma N3551K cost to run?

At 4 hours a day it uses about 212 kWh a year according to its EU energy label. At the EU average household price of 0.283 €/kWh that is about €60 a year, or €600 over ten years.