LED Watt Calculator
Find the right LED light as a replacement for your old bulb. Watt comparison and savings. Free online tool, includes 2026 reference values and savings.
LED Equivalent (Watt)
8 Watt
700 - 850 Lumen
Annual Savings
19,93 €
56,9 kWh weniger
Ersparnis / 10 Jahre
199,29 €
Glühbirne
60 W
LED
8 W
Ersparnis
87%
| Glühbirne (W) | LED (W) | Lumen | Ersparnis |
|---|---|---|---|
| 15 W | 2 W | 120 - 150 | 87% |
| 25 W | 3 W | 200 - 300 | 88% |
| 40 W | 5 W | 400 - 500 | 88% |
| 60 W | 8 W | 700 - 850 | 87% |
| 75 W | 11 W | 900 - 1100 | 85% |
| 100 W | 14 W | 1300 - 1500 | 86% |
| 125 W | 18 W | 1600 - 1900 | 86% |
| 150 W | 22 W | 2000 - 2500 | 85% |
Note: These calculations are for informational purposes only and do not replace professional tax or financial advice. All information without guarantee.
Frequently Asked Questions
How do I convert old watt values to LED watt?
Divide the old incandescent watt value by approximately 8-10 to get the equivalent LED wattage. A 60W incandescent bulb is replaced by a 6-8W LED with the same brightness (about 800 lumens).
What is the difference between watts and lumens?
Watts measure energy consumption, lumens measure actual brightness. For LED shopping, focus on lumens: 400 lm for accent lighting, 800 lm for general room lighting, 1,500+ lm for bright task areas.
What is the LED Watt Calculator?
The LED watt calculator helps when switching from conventional bulbs to LEDs. It shows the equivalent LED wattage and the annual cost saving.
How does the LED Watt Calculator work?
Enter the wattage of your current bulb. The calculator determines the equivalent LED wattage (approx. 1/7 of the bulb wattage) and computes the annual electricity saving at typical usage.
Key Data and Facts
Conversion: 60 W bulb approx. 8 W LED. 100 W approx. 14 W LED. LED lifespan: 15,000-50,000 hours. Saving: approx. 85% compared to incandescent bulbs.
Step-by-Step Guide
So finden Sie die passende LED-Lampe step by step: 1. Wattzahl der bisherigen Gluehbirne ablesen: z. B. 40 W, 60 W, 75 W oder 100 W. 2. LED-Aequivalent bestimmen: Die Umrechnung erfolgt ueber den Lichtstrom (Lumen). Gluehbirne 25 W ≈ LED 3 W (230 lm). 40 W ≈ 5 W (470 lm). 60 W ≈ 8 W (800 lm). 75 W ≈ 11 W (1.050 lm). 100 W ≈ 14 W (1.520 lm). 3. Farbtemperatur choose: Warmweiss (2.700 K) fuer Wohnraeume, Neutralweiss (4.000 K) fuer Kueche/Bad, Tageslichtweiss (6.500 K) fuer Arbeitsplaetze. 4. Ersparnis calculate: Stromersparnis = (Alte Watt - LED Watt) x Brennstunden/year / 1.000 x Strompreis. 5. Amortisation: LED-Lampen costs ca. 3-10 EUR, die Ersparnis gleicht den Kaufpreis oft innerhalb weniger Monate aus. Die Lebensdauer einer LED betraegt 15.000-50.000 hours gegenueber ca. 1.000 hours bei einer Gluehbirne.
Calculation Example
Ersatz einer 60-W-Gluehbirne durch 8-W-LED, 1.000 Brennstunden/year: Ersparnis = (60 - 8) x 1.000 / 1.000 x 0,37 = 19,24 EUR/year pro Lampe.
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