You may have seen the terms “candela” and “arlo” and wondered if they mean the same thing. Many people search for candela or arlo because they see these words in technology, lighting, or security camera discussions.
They may also see them in product descriptions, reviews, or technical guides. This creates confusion, especially for beginners.
The truth is simple. These words are not spelling variants. They have very different meanings. Candela is a scientific unit used to measure light.
Arlo is a brand name used for security cameras and smart home devices. People often compare them when reading about brightness, cameras, or lighting performance.
Understanding the difference helps you use the correct word. It also helps you sound more professional in emails, blogs, and technical writing. This guide explains everything in simple terms.
You will learn the meaning, origin, usage, mistakes, and when to use each word. By the end, you will know exactly how to use candela or arlo correctly.
Candela or Arlo – Quick Answer
Candela and Arlo are completely different terms.
- Candela is a unit of light intensity.
- Arlo is a brand that makes security cameras and smart home devices.
Examples:
- The flashlight has a brightness of 500 candela.
- I installed an Arlo security camera outside my home.
Candela measures brightness. Arlo is a product brand.
They cannot replace each other.
The Origin of Candela or Arlo
Origin of Candela
The word candela comes from Latin. It means “candle.” Scientists used candles to measure light long ago. Today, candela is an official unit in the International System of Units (SI).
It measures how bright a light source is in one direction.
Example:
- A candle has about one candela of brightness.
Candela is used in:
- Flashlights
- Cameras
- LED lights
- Projectors
It is a scientific and technical term.
Origin of Arlo
Arlo is a modern brand name. It comes from Arlo Technologies. This company makes:
- Wireless security cameras
- Smart doorbells
- Home security systems
Example:
- I bought an Arlo camera for my front door.
Arlo is not a scientific unit. It is a company and product name.
British English vs American English Spelling
This is important: Candela and Arlo are not British or American spelling variants.
They are proper terms and do not change spelling between countries.
Comparison Table
| Term | British English | American English | Same or Different |
| Candela | Candela | Candela | Same |
| Arlo | Arlo | Arlo | Same |
Unlike words like “colour” vs “color,” these words stay the same everywhere.
Why spelling does not change
Because:
- Candela is a scientific unit
- Arlo is a brand name
Scientific units and brand names do not change spelling.
Which Spelling Should You Use?
Your choice depends on meaning, not country.
Use candela when talking about light
Examples:
- Use candela in science writing
- Use candela in lighting guides
- Use candela in technical reviews
Example sentence:
- This LED has high candela output.
Use arlo when talking about cameras
Examples:
- Use arlo for security cameras
- Use arlo for smart home devices
- Use arlo in product reviews
Example sentence:
- The Arlo camera records clear video.
Audience-based advice table
| Audience | Use Candela | Use Arlo |
| Scientists | Yes | No |
| Camera buyers | Sometimes | Yes |
| Lighting engineers | Yes | No |
| Homeowners | Rarely | Yes |
| Tech writers | Yes | Yes |
Common Mistakes with Candela or Arlo
Many people confuse these terms. Here are common mistakes.
Mistake 1: Using Arlo as a light unit
❌ Wrong: This flashlight has 300 Arlo.
✅ Correct: This flashlight has 300 candela.
Arlo is not a measurement.
Mistake 2: Using candela as a camera brand
❌ Wrong: I installed a candela camera.
✅ Correct: I installed an Arlo camera.
Candela is not a brand.
Mistake 3: Thinking they are spelling variants
❌ Wrong: Candela is British, Arlo is American.
✅ Correct: They are different words.
Mistake 4: Mixing technical and brand terms
❌ Wrong: My Arlo has high candela brand.
✅ Correct: My camera has high brightness.
Use each term in correct context.
Candela or Arlo in Everyday Examples
Here are real-life examples.
Email example
Candela:
The spotlight has 1000 candela brightness.
Arlo:
Please install the Arlo camera near the gate.
News example
Candela:
The new flashlight offers higher candela output.
Arlo:
Arlo released a new wireless camera model.
Social media example
Candela:
This torch has amazing candela power!
Arlo:
I love my Arlo security system.
Formal writing example
Candela:
The device emits light measured in candela.
Arlo:
The Arlo system provides reliable security monitoring.
Candela or Arlo – Google Trends & Usage Data
These terms are popular in different fields.
Candela popularity
Popular in:
- USA
- UK
- Germany
- Japan
Used in:
- Science
- Engineering
- Lighting
People search candela when learning about brightness.
Arlo popularity
Popular in:
- USA
- Canada
- UK
- Australia
Used in:
- Security cameras
- Smart homes
- Home protection
People search Arlo when buying cameras.
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Usage comparison table
| Feature | Candela | Arlo |
| Type | Measurement unit | Brand name |
| Field | Science | Technology |
| Used for | Light intensity | Security cameras |
| Country variation | None | None |
| Professional use | Yes | Yes |
Comparison Table: Candela vs Arlo
| Feature | Candela | Arlo |
| Meaning | Unit of brightness | Camera brand |
| Origin | Latin | Modern company name |
| Category | Scientific term | Brand |
| Used in science | Yes | No |
| Used in products | Yes | Yes |
| Spelling variants | None | None |
| Global spelling | Same | Same |
FAQs About Candela or Arlo
1. Is candela the same as Arlo?
No. Candela is a light unit. Arlo is a camera brand.
2. Can I use candela instead of Arlo?
No. They mean different things.
Candela measures light. Arlo is a product name.
3. Is candela British and Arlo American?
No. Both spellings are the same worldwide.
They are not spelling variants.
4. What is candela used for?
Candela measures brightness.
It is used in:
- Flashlights
- LEDs
- Cameras
5. What is Arlo used for?
Arlo makes:
- Security cameras
- Doorbells
- Smart home systems
6. Why do people search candela or arlo?
People see these words in camera and lighting specs. They want to understand the difference.
7. Which one should I use in writing?
Use candela for brightness.
Use Arlo for camera brand.
Candela or Arlo – Google and Professional Usage Insight
Professionals use these terms clearly.
Engineers use candela for:
- Light testing
- LED design
- Optical measurement
Consumers use Arlo for:
- Home security
- Camera systems
- Device reviews
They belong to different industries.
Conclusion
The difference between candela or arlo is simple but important. Candela is a scientific unit. It measures how bright a light is. It comes from the Latin word for candle.
These words are not spelling variants. They do not change in British or American English. They have different meanings and uses. Using the wrong one can cause confusion. Always use candela when talking about brightness. Use Arlo when talking about cameras or security systems.
Knowing this difference improves your writing. It also helps you understand technical content better. Whether you are a student, blogger, or tech buyer, using the correct term makes your communication clear and professional.

Sarah Hall is an English novelist and short story writer. She often writes about nature, identity, and strong characters.










