1. What is luminous flux?

Luminous flux is a measure of brightness as perceived by the human eye. Due to the popularity of incandescent lighting, we are all used to measuring the brightness of light in watts. Today, we all use luminous flux. Light flux is often the most important factor in choosing LED strips. Be sure to compare the lumen output between LED lights before deciding which one is best for your project.

2. CRI and its importance?

The Color Rendering Index (CRI) is a way of measuring the color under a light source compared to sunlight. The CRI data is important because you want to make sure that the color is accurately rendered by the light source. The CRI is measured on a scale of 0-100 .For most applications, 80+ is the industry standard, while for cases where color accuracy is required, a CRI of 90+ is required. The Sunme high CRI series is perfectly suitable for photographic lighting, retail lighting, bathroom or salon lighting, and residential lighting.

3. The distance between the lamp beads and its use effect?

The LED pitch is the distance between individual chips (FPCBs) on the strip. The importance of LED pitch in a project is critical. The shorter the pitch, the more uniform the light and the less speckle.

4. What is the difference between 2835 lamp beads and 5050 lamp beads?

LED chips are not all the same. These four numbers are used to express the chip size in millimeters. For example, the 2835 chip is 2.8mm x 3.5mm. Some chips are brighter than others, and some have special uses and limitations.

5. What color temperature should I choose?

Choosing the right color temperature for your project is as important as choosing the brightness. Think about the look and feel you want your project to have. What other color lights will appear? What materials and colors do you want to light?

6. What is the BIN area?

Simply put, the BIN area is the grouping of LEDs in the production process so that they can be matched with LEDs of the same color. For example, all 2700K chips are "locked", they are processed separately from chips with higher/lower color temperature.

7. What is an IP standard?

This is a rating system that defines the ability of a product to work in different environments. IP is short for "Ingress Protection". It is a measure of protection against solid objects (dust, sand, dirt, etc.) and liquids. IP rating consists of 2 numbers. The first number refers to protection against solid objects (dust, etc.) and the second number refers to protection against liquids.

8. What are the 4 most important comparison factors when buying LED strips?

1. Make sure you know enough about your project's needs, then compare lumen output, color temperature and CRI when viewing options.
2. Compare the size and number of LED strips.
3. Know the wattage and voltage used by the LED lights.
4. Ensure that the product is of verifiable quality.

9. What is the service life of LED lights?

Our lights have been rigorously tested and adjusted to 70% brightness with an expected lifespan of 50,000 hours. This means that if you use your light 12 hours a day, the daily light will last more than 10 years. Even after this period of time has elapsed, the lights will remain at 70% brightness. High output light strips require heat sinks to achieve the expected lifespan.

10. What makes Sunme strips more popular?

The appearance of LEDs is often deceiving. Although LED strips look similar, their performance can vary widely. The quality of LED strips depends on the use of high-quality components, heat dissipation, BIN classification to ensure color consistency, verifiable long life, subtle color changes over a long life cycle (chromaticity changes) and verifiable performance. Only high-quality components go to our assembly shop. We lowered the brightness of the LEDs to make sure the temperature was low and would be lit continuously for many years, and we also did 8-12 hours of performance testing on each strip before leaving the factory.

11. How flexible is the light strip?

Our LED strips are as flexible as a carpenter's tape measure. The numbers on the tape measure resemble LED chips with lights. They can bend or bend down, but not on the horizontal axis (left or right).

12. The longer the light strip, the darker the brightness?

In a DC circuit, the voltage gradually decreases with the length of the wire (or LED light). So, for each meter of wire, the available voltage per meter gradually decreases with the length of the wire. This results in one end of the light strip Brighter than the other end. Our strips can be 1m, 3m or 5m and vary between different series of LED strips. After connecting to these lengths you need a power supply to run alone. On the other hand What may cause the voltage drop is the distance between the power supply and the led. A suitable size wire is required to avoid the voltage drop, please contact us for further questions.

13. What is the maximum depth that the IP68 LED strip can be submerged?

4 meters.

14. Can the connector of the IP68 light strip be immersed in water?

No, the degree of protection of the connector is IP65. Please contact us if you need us to customize longer wires at both ends of the strip to avoid the connector being soaked in water.

15. Is there any difference in brightness between indoor and outdoor LED lights?

Similar light output indoors and outdoors. They have exactly the same specifications, while the outdoor version is protected by a clear silicone sleeve. Outdoors may be 5% less bright than indoors, but that's not very noticeable to the human eye.

16. Will the IP65 light strip affect the CRI?

Yes, but minimally. For example, the IP20 LED strip we tested had a CRI of 82.6, while the IP65 strip had a CRI of 82.1.

17. Any suggestions for outdoor use of light strips?

All our outdoor lighting fixtures are equipped with fixed clips. There is also a 3M adhesive tape on the back of the light strip. We recommend combining the two for the safest installation.

18. Can I cut waterproof light strips (IP65/IP68)?

Yes. Be sure to reseal each time you cut to prevent water damage. Many customers prefer to seal with liquid insulating glue.

19. I am designing a project for an outdoor fountain, I need LED strips that can change color and submerge in water, is this product?

Our RGB series can also be made IP68, which means they are fully waterproof and submersible. They can be installed up to a depth of 4 meters (13 inches).

20. Will the LED strips from Sunme "survive" in a humid environment?

Indoor standard light strips can withstand up to 70% humidity. If it is being installed in a more humid environment, we recommend using our standard for outdoor light strips.

21. What is the importance of UL products?

UL is an acronym for Underwriters Laboratories. They are an independent product safety certification body. UL is "a non-profit organization dedicated to public safety." That means you can install these LED lights in commercial spaces, industrial applications, and your home. The UL-certified LED light strips provided by Sunme are made of high-quality components, giving customers more peace of mind.

22. Are all lights certified and safety tested?

Yes! Almost all light strips are CE, RoHS, UL certified.

23. Do LED light strips need to be marked with the EU energy label? 24. Can the LED lights be dimmed?

LED strips are not yet covered by this regulation, however, EU directives consider LED lamps to be the best replacement for incandescent, halogen and even HID lamps. After pruning the F and G classes, the new LEDs will likely occupy the A++ class

24. Can the LED lights be dimmed?

Yes. All of our LED lights are fully dimmable and can use a dimmer switch. It is important to choose a dimmer and power supply that is compatible with it. Note: RGB flexible strip lights can only be dimmed by one RGB controller.

25. Is my dimmer compatible with your strips?

Almost all dimming systems can be dimmed with our lights, but the compatibility between the dimmer and the dimmable power supply must be ensured first. Please contact us to see if your setup is compatible before installing. If you need more advice, please contact us.

26. How much brightness is lost by using a diffuser?

Diffusers help spread the light and reduce "flare", which typically reduces brightness by 30%.

27. If I want to buy a product that is not on your website, is it possible?

Please contact our team, they will be happy to discuss your custom product/project. We are also working on other lighting solutions. Within the sunme team, we all pride ourselves on serving great clients and doing everything we can to help our clients. If a product does not meet a certain standard, our team will definitely try to find a way to meet the customer's needs.

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