How many watts should an LED bulb be? The Right Choice Guide for Your Home 2026
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The most common question when choosing an LED bulb: How many watts should it be? Choosing the right wattage is critical for both energy saving and adequate lighting. However, what truly matters is not the wattage — it's the lumen value.
Watt or Lumen? What Really Matters!
Watt indicates how much electricity a product consumes. Lumen, on the other hand, shows how much light is produced. A quality LED bulb produces high lumens with low wattage.
| Incandescent Bulb | LED Equivalent | Lumen | Savings |
|---|---|---|---|
| 40W | 4-6W LED | 400-500 lm | 85% |
| 60W | 8-10W LED | 800-900 lm | 83% |
| 100W | 13-15W LED | 1400-1600 lm | 85% |
| 150W | 18-20W LED | 2000-2200 lm | 87% |
Recommended Wattage and Lumens by Room
Living Room (20-30 m²)
- Chandelier: 60-80W total LED (800-1200 lm)
- Spotlight: 9-12W per spot
- Color: 3000K warm white
Kitchen (10-15 m²)
- Ceiling: 18-24W
- Under-cabinet: 9-12W or LED strip
- Color: 4000K daylight
Bedroom (12-18 m²)
- Ceiling: 40-60W total
- Reading lamp: 9W, flicker-free
- Color: 2700-3000K warm white
Bathroom (4-8 m²)
- Ceiling: 18-24W, IP44+
- Above mirror: 9-12W, CRI 90+
- Color: 4000K natural white
Color Temperature (Kelvin) Guide
| Kelvin | Color | Usage Area |
|---|---|---|
| 2700K | Warm White | Bedroom, living room |
| 3000K | Warm White | Living room, restaurant, hotel |
| 4000K | Daylight | Kitchen, bathroom, office |
| 6500K | Cool White | Garage, warehouse, industrial |
🛍️ Recommended LED Bulb Models
❓ Frequently Asked Questions
How many watts should an LED bulb be?
It varies by room size. For a standard room, an 8-10W LED bulb (800-900 lm) is usually sufficient. Look at the lumen value instead of wattage.
How much electricity does an LED bulb consume?
A 10W LED bulb, used 8 hours a day, consumes approximately 2.4 kWh per month. This is 1/6th of an old 60W incandescent bulb.
Which color temperature should I choose?
For bedrooms and living rooms, 2700-3000K warm white is recommended, and for kitchens and bathrooms, 4000K daylight.
How long does an LED bulb last?
Quality LED bulbs offer a lifespan of 25,000-50,000 hours. Used 8 hours a day, this means approximately 8-17 years.
Should I choose E27 or E14?
Choose based on your socket type. Large chandeliers and ceiling fixtures typically use E27, while small sconces and decorative fixtures use E14.
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