From https://www.thecalculatorsite.com/energy/lumens-watts.php
What wattage light bulb do I need?
When swapping out your old incandescent or halogen bulbs for more energy-efficient CFL or LED bulbs, you may wish to have a comparison to ensure you get the same level of brightness (lumens) from your bulb. To assist you, we have provided a handy conversion table below. Note that efficacy can vary, often wildly, between manufacturers. So, do check the ‘lighting facts’ label on the bulb before you buy.
| Lumens | Incandescent bulb (12-18 lm/W) | LED bulb (80-100 lm/W) |
|---|---|---|
| 300-450 lm | 25 W | 4 W |
| 480-720 lm | 40 W | 7 W |
| 720-1080 lm | 60 W | 10 W |
| 900-1350 lm | 75 W | 13 W |
| 1200-1800 lm | 100 W | 17 W |
| 1800-2700 lm | 150 W | 25 W |
| 2400-3600 lm | 200 W | 34 W |
| Conversions are a guide only. Bulb efficiency may vary. | ||
