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What is 2700k light in lumens?

Lighting can be a complex topic with measurements like color temperature (K) and brightness (lumens) that may seem confusing at first glance. In this comprehensive guide, we’ll break down exactly what 2700K light means and how bright it is in lumen output.

Understanding Color Temperature

Color temperature refers to the appearance of a light source and is measured using the Kelvin (K) temperature scale. Lower Kelvin temperatures like 2700K produce a warm, cozy light that is perfect for bedrooms and living rooms. Higher Kelvin temperatures over 5000K emit a cool, blueish light that is well-suited for task lighting in offices or garages.

Here is an overview of common color temperatures for reference:

Color Temperature Light Appearance Recommended Uses
1000-2000K Very warm yellow, orange or red Candlelight, campfires
2700-3000K Warm white, slightly yellow Home lighting, accent lamps
3500-4100K Bright white, neutral Offices, classrooms
5000-6500K Daylight, cool blue/white Garages, outdoor areas

As you can see, 2700K lighting falls into the warm white category and is a flattering choice for living spaces where you want a cozy ambiance. The light will have a very subtle yellow/orange tone compared to a pure white light source.

Understanding Lumens

The brightness of a light bulb is measured in lumens, which refers to the total amount of visible light emitted. More lumens means a brighter light. For reference, here is a chart showing the lumen output of common household light bulbs:

Light Bulb Approximate Lumens
40-Watt Incandescent 450 lm
60-Watt Incandescent 800 lm
75-Watt Incandescent 1,100 lm
100-Watt Incandescent 1,600 lm
9-Watt LED (60-watt equivalent) 800 lm
12-Watt LED (75-watt equivalent) 1,100 lm
15-Watt LED (100-watt equivalent) 1,600 lm

As you can see, standard 40-100W incandescent bulbs emit 450-1,600 lumens. More modern LEDs can match those brightness levels while using much less energy.

Lumen Output of 2700K Lighting

Now that we understand color temperature and lumens, let’s connect the dots to 2700K lighting specifically. The lumen output of a 2700K bulb can vary greatly depending on the bulb technology and wattage. Here are some examples of common 2700K bulbs and their brightness levels:

Light Bulb Lumen Output
8W 2700K LED 650 lm
12W 2700K LED 900-1,000 lm
40W 2700K Incandescent 430 lm
60W 2700K Incandescent 710 lm
100W 2700K Incandescent 1,490 lm
14W 2700K CFL 900-1,200 lm

As you can see, there can be significant variation in how bright a 2700K bulb is depending on the specific product. Modern LEDs produce the most light using the least energy. A standard 60W incandescent bulb at 2700K would emit around 710 lumens. But an LED equivalent might produce 800+ lumens while using just 9-12 watts.

Choosing the Right Brightness

So how many lumens do you need for adequate lighting in different rooms? Here are some general lumen guidelines:

Room Recommended Lumens
Bathroom 500-1,000 lm
Kitchen 3,000-5,000 lm
Dining Room 1,000-2,000 lm
Living Room 1,500-2,500 lm
Office 2,500-5,000 lm
Bedroom 500-1,500 lm

Typically a single bulb in the 1,000-1,500 lumen range is sufficient for a living room or bedroom. Task-focused spaces like kitchens, offices or workshops need much brighter lighting of 3,000-5,000+ lumens. For most general residential uses, a standard 2700K LED bulb in the 800-1,200 lumen range should provide ample illumination.

Comparing 2700K Bulbs

When shopping for 2700K lighting, you’ll want to look at the specific lumen ratings of bulbs rather than just the wattages. Here are some popular options to consider:

Light Bulb Lumens Watts Lifespan
Philips 2700K LED 800 lm 9W 10,000 hrs
GE 2700K LED 850 lm 9W 15,000 hrs
Sylvania 2700K CFL 900 lm 13W 10,000 hrs
EcoSmart 2700K LED 1,100 lm 12W 25,000 hrs
TCP 2700K LED 1,100 lm 15W 25,000 hrs

Pay attention to lumens rather than just wattage, as LEDs can produce equal or higher light levels at a fraction of the energy usage. Also note differences in lifespan, with LEDs lasting 2-3 times longer than fluorescent or incandescent bulbs.

Smart Lighting Options

Beyond standard bulbs, there are now many smart lighting options that offer 2700K light. These connected bulbs can be controlled remotely via smartphone and voice assistants. Here are some top options:

Smart Bulb Lumens Compatibility
Philips Hue White Ambiance 800 lm Apple HomeKit, Alexa, Google Assistant
LIFX White 800 lm Apple HomeKit, Alexa, Google Assistant
Sengled Element Classic 800 lm Alexa, Google Assistant
C by GE C-Life 800 lm Alexa, Google Assistant
TP-Link Kasa 800 lm Alexa, Google Assistant

These smart bulbs allow you to easily control 2700K lighting from your phone and voice, automate schedules, set scenes and moods, and integrate with other smart home devices. The initial cost is higher than standard bulbs but the added features can be worth it for many.

Dimmable vs Non-Dimmable

Another consideration is whether you want dimmable vs non-dimmable 2700K bulbs. Dimmable bulbs allow you to lower the light output anywhere from 1-100% brightness. This gives you adjustable control and the ability to set just the right ambient lighting mood.

Dimmable LED, CFL, and incandescent 2700K bulbs are available, but you’ll need a compatible dimmer switch. The switch and bulbs must be designed to work together or else the dimming functionality may not work properly. Always check for dimmable certification when buying bulbs and switches.

3-Way vs Standard Bulbs

If you have a 3-way lamp that uses multiple switches to control one light, you’ll need compatible 3-way bulbs. These have an extra filament that allows 3-way switching. Make sure to buy 2700K LEDs labeled as 3-way or multi-location bulbs for these fixtures.

Spotlights, Floodlights and Specialty Options

In addition to standard A19 screw-in bulbs, 2700K lighting comes in many shapes, sizes, and styles including:

  • Spotlights – Narrow directional beam
  • Floodlights – Wide spread beam
  • Globe bulbs – Round decorative shape
  • Flame tips – Distinctive tapered shape
  • Vintage filament bulbs – Exposed glowing filaments
  • Chandelier bulbs – Smaller decorative look
  • Candle bulbs – Designed for chandeliers and sconces
  • Reflector bulbs – Flood or spot beam pattern

Browse the many 2700K specialty bulb options to find a unique lighting look. Just check the lumen output to understand the brightness level.

Understanding Watts vs Lumens

When buying new 2700K lighting, you’ll see information on both watts and lumens. What’s the difference, and which one matters?

  • Watts measure electrical power consumption
  • Lumens measure visible light output

For led and CFL bulbs, lumens provide a much better indication of brightness than watts. Traditional incandescent bulbs convert watts to lumens inefficiently, so the wattage was a rough proxy for light output. But LEDs produce far more light per watt, so lumens give you a true brightness comparison.

Decorative vs General Purpose Lighting

2700K bulbs come in both decorative and general purpose options. Decorative bulbs feature unique shapes, filaments, or finishes to make a design statement. These include edison bulbs, flame tips, globes, and vintage styles. General purpose options like A19 LEDs focus more on utility than looks but still provide attractive 2700K light.

Finding the Right 2700K Brightness

Choosing the perfect 2700K bulb means finding one with the ideal amount of light for your needs that also fits the specific fixture. Anywhere from 450 to over 2,500 lumens may be appropriate depending on the room size, purpose, and personal preference. The many styles and brightness levels available give you lots of options to find just the right 2700K light.

Conclusion

Understanding light bulb specifications can feel overwhelming at first glance. However, once you learn the basics of color temperature (2700K warm white light) and brightness (lumens), you can easily pick the perfect bulbs for every room and lamp. Focus on lumens more than watts, look for energy-saving LED technology, and explore the many specialty shapes and styles available to find the ideal 2700K lighting for your home.