Dimmer Switch Compatibility Calculator
Check LED load against a dimmer.
Work It Out And Get Clear Answers
Check LED load against a dimmer.
Dimmer Switch Compatibility Estimator
Enter your numbers below for an instant estimate.
How It Works
Key concepts behind this calculator
Enter Values
Fill in each field with your own numbers.
Calculate
Press Calculate to see the result.
Review
Read the breakdown and the explanation.
Adjust
Change values to compare scenarios.
Dimmer Switch Compatibility Quick Guide
Typical values for reference.
| Total LED load (W) | Dimmer rating (W for incandescent) | Dimmer minimum load (W) | LED capacity of dimmer |
|---|---|---|---|
| 40 | 600 | 10 | 150 W |
| 20 | 600 | 10 | 150 W |
| 80 | 600 | 10 | 150 W |
| 40 | 300 | 10 | 75 W |
| 40 | 1,200 | 10 | 300 W |
| Rule of thumb: check your inputs, use the result as a guide and round sensibly. | |||
Dimmer Switch Compatibility FAQ
Answers to common questions about this calculator.
LED capacity is often about 25% of the incandescent rating.
It uses the default inputs shown and the formula described above. Change any value and press Calculate to see how the result moves.
It is an estimate based on the inputs you enter. Check real quotes, labels, product data or official guidance for important decisions.
Yes. Replace each input with your own figures and press Calculate to update the result.