Watts vs Lumens in LED lamp: What is the difference?
- keibuelectric
- 15 Nov
- 2 menit membaca
If you've ever shopped for LED bulbs, you've likely encountered the perplexing world of watts and lumens. Gone are the days when you could simply grab a 60-watt incandescent bulb and know exactly how bright it would be. With LED technology, watts and lumens play very different roles, making it essential to understand how brightness is measured in modern lighting.
Watts vs. Lumens: What’s the Difference?
For years, we’ve used watts as a measure of brightness, but watts actually measure energy consumption, not light output. Traditional incandescent bulbs were inefficient, so their brightness was roughly proportional to their wattage. A 60-watt bulb produced about 800 lumens, and a 100-watt bulb delivered around 1,600 lumens.
Lumens, on the other hand, measure the actual brightness of a bulb—how much visible light it emits. This shift in measurement has become crucial with LEDs because they consume far fewer watts to produce the same amount of lumens.
Why LEDs Are More Efficient
LEDs use advanced technology to produce more light using significantly less energy. Here’s a rough guide to help compare LED brightness to traditional incandescent bulbs:
Incandescent 60W → LED 8-10W → 800 lumens
Incandescent 100W → LED 14-16W → 1,600 lumens
Incandescent 150W → LED 20-25W → 2,600 lumens
As you can see, an LED uses about 85% less energy than an incandescent bulb to achieve the same brightness.
How to Choose the Right LED Bulb
Since watts are no longer a reliable brightness indicator, use lumens instead when selecting an LED bulb. Here’s a quick guide:
For a cozy, warm glow (like a bedside lamp): Look for 450-800 lumens
For a bright workspace (like a kitchen or office): Choose 1,000-1,600 lumens
For outdoor lighting or large spaces: Opt for 2,000+ lumens
Additionally, check the color temperature (measured in Kelvins, K). A 2,700K-3,000K bulb emits a warm, yellowish light, while a 5,000K-6,500K bulb produces a daylight-like, bluish-white light.
Why Understanding Lumens Matters
Understanding lumens helps you avoid buying bulbs that are too dim or too bright for your needs. Plus, it ensures you get the most efficient and cost-effective lighting. Since LED bulbs last up to 25 times longer than incandescents and use a fraction of the energy, switching to LED lighting not only saves money but also benefits the environment.
Final Thoughts
Next time you're shopping for a light bulb, focus on the lumens if you are choosing a brighter lamp. Choosing the right brightness ensures you get the perfect lighting for your space without wasting energy. With LEDs, you can have it all—brightness, efficiency, and longevity—all while lowering your electricity bill. So, shine bright and make the smart switch to lumens over watts! Check our range of LED bulbs which have lumens > 100 per watt, making our KEIBU LED really bright and hence value for your money.
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