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Choose an LED bulb in 6 steps: lumens, kelvin and fit

Compare brightness in lumens and power in watts, then check base, enclosed-fixture and dimmer compatibility.

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U.S. Department of Energy

Original source: Choose an LED bulb in 6 steps: lumens, kelvin and fit

Source guidance link card from U.S. Department of Energy

The US Department of Energy explains why brightness should be compared in lumens rather than incandescent wattage. Base types and fixture limitations vary by country and product.

Your try-it-at-home checklist

0 / 6 done

1. Read the fixture's socket/base type, supply voltage and permitted wattage before selecting a bulb.
2. Match the desired brightness using lumens; watts measure energy use, not light output.
3. Select color temperature: roughly 2700K feels warm while around 4000K looks cooler.
4. For fully enclosed fixtures, verify that the LED is specifically rated for enclosed use.
5. If a dimmer is fitted, confirm dimmable labeling and switch compatibility.
6. Switch power off and let the old lamp cool before changing it; investigate flicker or insufficient brightness by checking compatibility.

Original source: Choose an LED bulb in 6 steps: lumens, kelvin and fit

Your try-it-at-home checklist

Further reading

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