EnergyLabelEU
EN
Costs for 0.283 €/kWh · Eurostat 2026 H1

Monitors · 8″ · 800×600 · LED LCD

CarTFT.com CTF840

A

Uses less electricity than 46% of the 2,372 monitors, under 24″ on the EU register. At your selected price (European Union) that is €3 a year, €33 over ten years.

Power, SDR
8.0 W
Typical 8 W
Running cost
€3 / year
4 h a day

Near the middle of its group: 2 % above the typical 12 kWh. Class A is the best class any model in this group reaches. On-mode power in SDR is 8.0 W; the typical screen of this size draws 7.9 W. CarTFT.com has 20 models in this group; this one is number 16 among them. CarTFT.com sells the same label values under other model names: CTF846. On the register since 2021 and still on sale.

Where it stands

Rank 1,196 of 2,372 monitors, under 24″ by yearly consumption. 1,195 use less.

Median 12 This model · 12 0 75 kWh ← uses less · uses more →

Next to it in the ranking

  1. D V7 L156TCH-1G 12 kWh same
  2. A CarTFT.com CVL1010 12 kWh same
  3. A CarTFT.com CTF840 12 kWh
  4. A CarTFT.com CTF846 12 kWh same
  5. C ScreenMate M107 12 kWh same
See the full ranking

What it will cost you

Period CTF840 NACODEX NKP02 Difference
1 year €3 €1 −€2
5 years €17 €4 −€12
10 years €33 €8 −€25
15 years €50 €12 −€37

Is the more efficient model worth its price?

Years of use

Enter both purchase prices to see the total cost of ownership.

Power in SDR and HDR

Cost by viewing time

Use kWh / yr € / yr
2 hours a day 6 €2
4 hours a day 12 €3
8 hours a day 23 €7

Same size, lower running cost

On sale, at least 10% less energy, same size group

Model SizeSDR W kWh / yr Saves / year in 10 years
A CarTFT.com CTF840 (this model)
8″8.0 12 — —
9″2.0 3 €2 €25
7″2.3 3 €2 €24
7″2.4 4 €2 €23
7″2.4 4 €2 €23
7″2.4 4 €2 €23

Label and product sheet

Energy class SDR / HDR
A / –
On-mode power SDR
8.0 W
Standby / networked standby
0.5 W
Screen diagonal
8″
Resolution
800×600
Panel
LED LCD
Refresh rate
60 Hz
Spare parts (minimum)
7 years

Model numbers and history

Registered by CarTFT.com under one model number.

CTF840

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

Questions

How much does the CarTFT.com CTF840 cost to run?

At 4 hours a day it uses about 12 kWh a year according to its EU energy label. At the EU average household price of 0.283 €/kWh that is about €3 a year, or €33 over ten years.