COB – Ledbe Blog

How To Fix The Voltage Drop Issue For LED Strips?

September 11, 2024March 3, 2025 ledbe Leave a comment

When you connect multiple 5-meter light strips in series, you will find that the LEDs closer to the power source are brighter than those farther away. This is a voltage drop issue that causes inconsistent brightness. Today, we will check how to solve this issue.

What Is Voltage Drop?

When the light strip is connected in series for more than 10 meters, the voltage will decrease when the current passes through many electronic components: LEDs and resistors. For example, if the normal working voltage is 24V, the measured voltage may be only 20V at 15 meters. If the working voltage of the LED is lower than the standard working voltage, it will appear darker to the naked eye compared to the LED closer to the voltage. This is called voltage drop.

How To Solve?

There are three solutions to solve the voltage drop issue.

Connect the LED Strips in parallel.

If you are installing multiple light strips for your project and need them to be uniformly bright, we would recommend connecting them in parallel to a power supply or controller so that all LEDs have the same operating voltage.

2. Choose the high-voltage LED Strips

Because the high-voltage light strips have a parallel design of the lamp beads on the circuit, the voltage drop is very unobvious even in long-distance projects, so they are very suitable for outdoor long-distance projects. The maximum lengths can be 50 meters or 100 meters per roll, and they can be connected in series.

3. Add voltage From the Middle Or Other End

The third solution to fix the voltage drop issue is to add the same voltage from the middle or the other end if the length of the parallel light strip exceeds 10 meters or 15 meters. It is suitable for indoor and outdoor voltage light strip projects. Below is a picture of the wiring diagram for all kinds of connections.

Conclusion

For most users, the method of adding voltage is easiest. No matter how long the light strips are, if you find that the brightness of the LEDs is inconsistent, especially for the high-density COB or SMD LED strips, you can solve this problem by adding the voltage from the middle or the end as shown in our picture.

Know the difference between White Colors Of LED Strips

November 20, 2023December 10, 2024 ledbe Leave a comment

White LED strips are a type of lighting product that utilizes white light-emitting diodes (LEDs) to produce illumination. These flexible strips can be easily installed in various settings to create ambient lighting or highlight specific areas.

The LEDs used in white LED strips emit a bright and crisp white light, making them suitable for functional and decorative purposes. They are energy-efficient and have a longer lifespan than traditional lighting options, making them popular for residential and commercial applications.

White LED strips are available in various brightness levels and color temperatures, allowing users to customize the lighting to their desired ambiance. They can be dimmed or controlled using smart home systems, providing convenience and flexibility in lighting according to different needs and preferences.

These LED strips are versatile and can be used in various settings, such as under cabinets, along staircases, in coves or recessed areas, and even outdoors. They are often used for accent lighting, task lighting, or creating visual effects in spaces.

How to choose the right color Temperature of White LED Strips?

Choosing the right color of White LED Strips can significantly enhance the ambiance and aesthetics of any space. It is important to understand that white LED strips come in different color temperatures, measured in Kelvin (K). The color temperature determines the shade of white emitted by the LED strips. Generally, there are three main color temperature options for white LED strips: warm white, neutral white, and cool white.

Warm white LED strips have a color temperature ranging from 2700K to 3000K. They emit a soft, yellowish light that creates a cozy and inviting atmosphere. Warm white LED strips create a relaxing and comfortable ambiance, such as bedrooms, living rooms, or dining areas.

Neutral white LED strips have a color temperature ranging from 3500K to 4000K. They emit a balanced, natural white light that is neither warm nor cool. Neutral white LED strips are versatile and can be used in various settings, including kitchens, offices, and retail spaces.

Cool white LED strips have a color temperature ranging from 5000K to 6500K. They emit a bright, bluish-white light that is crisp and energizing. Cool white LED strips are commonly used in task-oriented areas, such as workspaces, garages, or bathrooms, where clear visibility is essential.

Various Color Temperatures Of COB LED Strips

When choosing the right color of white LED strips, it is crucial to consider the purpose and atmosphere you want to create in the space. Additionally, keep in mind the existing lighting in the area and how the white LED strips will complement or contrast with it.

In conclusion, selecting the appropriate color temperature of white LED strips can significantly impact a space’s overall look and feel. By considering factors such as color temperature and intended use, you can make an informed decision that enhances the ambiance and lighting of your environment.

Why The COB LED Strips Are More Popular Than SMD’s?

July 18, 2022July 17, 2023 ledbe Leave a comment

If you want to add some LED Lights that are flexible, bendable and cuttable, we will recommend using the LED Strip Lights, but now more and more users will choose the COB LED Strips, not the SMD LED Tapes. today let’s check the advantage of COB LED Lights.

“COB” is the abbr chip-on-board technology, the newest technology of packaging the LED Chips, 320PCS/480PCS/520PCS or 840PCS LED Chips are mounted on every meter flexible PCB board to allow high density LED array. to create a totally smooth, seamless line of light, this outstanding design will not show any visible light dots or hot spots, making it ideal illumination for reflective surfaces, such as countertops, tile floors, jewelry cases and backlighting.

Advantages:

More Bright
No Visible Light Dots And Hot Spots
90+ High CRI

Due to the high-density LED Chips packaging technology, the COB LED Strips are more bright than the SMD’s, the max LEDs that can be mounted on every meter PCB board is 144PCS, but for COB, the number increased to 840PCS. the more Light Chips mean the COB LED Lights are more bright, you will not see any visible light dots and hot spots. from the photo below, you will see the difference:

the COB LED Tapes with a higher CRI(color rendering index) value, the value of single color is 90+ and multiple colors is 80+, with the higher CRI, the reflection of lighting on the products look more natural, which makes the subject outstanding in color and features of materials, perfectly reflecting the colors of subject and the human beings. it’s an ideal lighting solution for stores that sell fruits or foods.

the COB LED Strips are flexible, bendable and cuttable too, the width from 2.7mm to 12mm for various applications, you can take single colors like warm white, white, natural white, red, blue, yellow, purple, etc, the multiple colors are available: RGB, RGBW, RGB+CCT, Dream color. you can choose the different waterproof level products for your projects from IP20, IP65, IP68 and IP68.

Now the price of COB LED Lights is very close to the SMD’s, so if you want to get a better result for your lighting projects, we will strongly recommend the COB LED Lights.

What’s CRI?How To Choose The Right One?

March 17, 2022March 17, 2022 ledbe Leave a comment

When you choose the different LED Lights, you will find some LED Lights that mark the CRI value, 80Ra, 85Ra or 90Ra, so the question is, what is CRI? how to choose the right one?

CRI is the abbreviation of the color rending index, the high CRI value will make the subject more natural. if use the high CRI LED Lights that makes the subject outstanding in color and features of materials, perfectly reflecting the colors of subject and the human beings. it’s an ideal lighting solution for stores that sell fruits or foods.

Ra is the average from R1 to R8, we should not only take attention to average Ra but also on the situation red special R9 and the average Ra(9-12) of red, yellow, green, blue when designing high CRI LED studies have found that there is a gap between the RA and the visual evaluation for the color of the white LED, the color fo the white LED with the lower Ra maybe looks beautiful, the color of the white LED with the higher Ra will look ugly. it can bed ensured the high CRI of white LED when Ra and R9 are both on high value.

R9 refers to a saturated red, with a wavelength of 650nm when the R9<0, the red light is not enough, the red serious distortion, so the lamp can not render in the red color naturally, the number bigger the conductibility of the red light is better, whatever, the R9 bigger, the effect on irradiation in fruit and flowers better, they are more bright-colored, especially, the product is used for commercial lighting, the R9 can not be negative.

so the value of CRI is higher, the reflection of lighting on the products look more natural. so that’s why CRI98 is better than CRI95, and absolutely, the products with higher CRI value, the price is more expensive. if you are looking for LED Strips with a high CRI value, we will recommend the COB LED Strips, which with high-density LED Chips design, a CRI value of more than 90Ra, NO visible light dots and dark area. you can use them for the home applications or high-end lighting projects.

What Is COB? And Why We Call It’s New Generation Of Strip Lighting?

December 14, 2021March 3, 2025 ledbe Leave a comment

COB is the abbreviation of Chips on Board, which is the newest technology of packaging LED Chips. the LED Chips will direct contact with a substrate to produce LED arrays, the COB technology allows high density LED Chips than SMD(Surface Mounted Device) LEDs and dual in-line package LEDs, which allows a much higher quantity of LEDs per meter, not 30PCS, 60PCS or 120PCS, the COB LED Strips have at least 300PCS LED Chips per meter. this results in higher intensity and uniform light emission. this new technology can greatly reduce the footprint and energy consumption of LED arrays and keep light output constant.

now more and more customers like these new Strip Lights, which with more LEDs per meter, high CRI, high density, high brightness, uniform light emission, no light dots and no dark area, high efficiency and longer lifespan. you can use them for high-end lighting projects with any diffusers. they are 5meters per reel on the market, you can follow the cutting marks and cut to any length you want for your project, on our website, to avoid fewer issues, we can provide the length from 1meter to 5meters per piece.

there are various waterproof level products available, you can choose the IP30, IP67 and IP68, you can use the IP30 non-waterproof COB LED Strips in a dry place for indoor applications. the IP67 silicone tube waterproof LED Strips and IP68 glue injection Strip Lights for outdoor applications, you can install them in a wet, damp or water location. there are various emitting color products available, warm white, natural white, daylight white, red, green, blue, RGB and dreamcolor.

COB—The Future Of LED Strips?

July 1, 2021February 21, 2025 ledbe Leave a comment

If you are searching the LED Strips on the internet, you will find some LED Lights named COB LED Strips, so what’s COB and why we say it’s the future of LED Strips.

What is COB?

COB is the abbreviation for chip on board, which means the LED Chips were packed on the PCB board directly, not like the SMD LEDs that the LED Chips were fixed on the brackets. the COB refers to the mounting of a bare LED Chip in direct contact with a substrate to produce LED arrays, which allows for a much higher packing density of the LED array, results in higher intensity and greater uniformity of light, no light dots and dark area. can greatly reduce the footprint and energy consumption while keeping light output constant.

2. How To Produce the COB LED Strips?

when the manufacturer begins to produce the COB LED Strips, they will put the COB LEDs side by side down the center of the LED Strips, so maybe there are 320, 540, 720 or 894PCS LEDs per meter, there is a phosphor layer over the LEDs like the photo shows above. which will balance out the color temperature while also acting like a protective layer for the tiny LED Chips.

3. Advantages Of COB Strip Lights.

No Light Dots: because there are more LED Chips on the LED Strips per meter and the LED Chips was put side by side closely, the strip illuminates a smooth, consistent light from start to finish. the uniform light has no dark area and much more attractive to the human’s eyes. bring the steady light even in a tight place.
More Bright: yes, because the COB LED Strips have more LEDs per meter, so it looks brighter than the SMD LED Strips, the bright light also emits at a wider angle and will spread at 180° off the Strips.
More Flexible: because on the COB LED Strips the LED Chips put in an array with smaller sizes, which makes it more flexible and bendable.
Working Voltage: DC12V/DC24V, you can choose two working voltage COB LED Strips, but if you want a longer run length, we will recommend the DC24V.
Colors: there are still many colors available, you can choose the various color temperatures warm white, neutral white, cool white, other single colors and RGB.

Compared to the SMD LED Strips, the LED Strips with COB brighter and flexible, the color rendering index can reach 90, perfect for various indoor and outdoor linear lighting projects, excellent efficiency and color consistency, incredibly bright and comfortable visual experience. so we believe the COB is the future for the Flex LED Strips.