COB LED Strip Supplier & Manufacturer
TANGSONG Lighting is a professional COB LED Strip manufacturer in China. We offer customized solutions, OEM, ODM service. Wholesalers,
distributors, dealers, traders, agents are welcome to purchase in bulk with us.
All our COB LED Tape Lights are CE, RoHS and LM80 cerfificated, ensuring high performance and long lifetime.
If you have customized need for bulk robus Red, RGB, RGBW COB LED Strip Lights, TANGSONG can offer custom COB LED Strip Light with
Custom color, size, long, CRI, and various accessories.
What's COB?
COB stands for Chip On Board in the LED field, which basically means that the
LED Chip is packaged directly on the circult board(PCB). "Chip On Board" LEDs
For flexible COB led strip lights are sometimes referred to as flip-chips.
Flip chip LEDs are basically a bare-bones approach to LED construction.
Take a look at an ordinary SMD(Surface Mount Device) LED. It has a lamp bead
Holder that package the LED chip and then covers it with a phosphor coating.
The "flip-chip" that makes up the COB LED strip removes everything from its
Design, except for the LED chip, yellow phospher cover layer, and connection
Pads.
What's COB LED Strip?
COB means Chips on Board, which means that the chips are directly encapsulated on the flexible PCB board, and the COB led strip is a strip of
Chips encapsulated on a flexible board. The chips are mostly flip chips, which are linearly fixed on the PCB board, and then a layer of
Encapsulation glue mixed with phosphor is directly dropped on the surface of the chip. The light emitted from the chip is refracted, reflected and
Interacts with the phosphor, and the glue emits different colors and color temperatures of light evenly. So COB LED strip light is also called
Continuous led strip light or dotless led strip lights.
Features & Benefits Of COB LED Strip
> Uniform, No light spot, even without aluminum profile.
One of the biggest complaints about traditional LED strips is the lighting dot throughout the strip. A lighting dot is a bright area through the strip
Where you can see where the light is coming from. Light is more soft and attractive when it looks like a smooth light source rather than a lighting
Dot mess.
With 5050 SMD flex strips, the large diodes are squeezed close enough so that the light is spread out and consistent across the iluminated
Surface at a distance. But if the light is too close to the surface or the strip itself is visible, the hot spot is an obstacle that the human eye cannot
Ignore.
With a 480 chip/M COB strip, it is pretty challenging to pick out any hot spots on the COB flexible strip. This strip shines a soft, uniform light
From end to end. Even light with no lighting dot is more attractive to the human eye and gives off a steady light even in the narrow places.
The only natural way to see the lighting dot is to look at the back of the strip, where it is easier to see the individually placed flip-chip LEDs.
You can only see the individual led if you dim strip down to about 5% brightness.This makes COB flex strips ideal for application where.
1. The led strip itself cannot be hidden from view.
2. The surface being illuminated is within 2 feet of the light bar.
3. Reflective surfaces like granite/glass are all around.
4. Those applications where you want an excellent neon effect.
> More flexibility
COB led strip lights are much more flexible than other flexible strips because of the small size of the diodes and the uniform weight distribution
These diodes are so small and closely placed that no point of the strip is the same. This uniformity makes it easy to set up the strips without
Planning around a 5050 SMD LED sticking out where you don't need it. This extra flexibility will make it easier for them to fit it into tight areas
And turn corners in your application.
> Wide emitting angle, 180 degress
The traditional SMD light strip luminous angle is 120 degrees, while the COB led tape light luminous angle is 180 degrees.
> More stable, fewer probems
1, COB strip is the chip directly attached to the FPCB, does not come with gold wire. Traditional SMD led strip, very many probems are caused
By the gold wire inside the LED beads. Because the gold wire is too small, it is straightforward to be broken, leading to the chip not being
Illuminated.
2, The circult design of the COB led strip uses three chips, first in parallel, as a group, then each group, and then in series to form one step. Even
if a group of two chips inside the bad, this one-step strip can continue to light and COB a meter of chips how big 480, even if 1-2 chips do not light,
Will not produce dark areas, will not affect the use. While the traditional SMD strip, a CUT, as long as there are lousy lamp beads, this one cuts will
Not light, so there will be obvious to see a section of the dark area.
> Long Life span, more than 50000 hours
The COB chip is directly fixed on the PCB board, the heat of the chip can be quickly transferred to the PCB board. Therefore, the heat
Dissipation rate of the COB led strip is faster than that of the SMD led strip, and subsequently, the light decay of the COB led strip is smaller,
And the life span is longer.
Applications of COB LED Strips
TANGSONG is a professional COB LED Strips Light factory and exporter. The COB flexible led strip that we manufacture is highly versatile and
Can be used in various different industries.
1, Architectural lighting.
2, Furniture & wine cabinet lighting.
3, Hotel renovation lighting.
4, KTV & Coffe bar lighting.
5, Parking lighting.
6, Shopping mall lighting.
How To Produce COB LED Strip?
Step1: Expanding Chips.
Step2: Die bonding.
Step3: Resistors onto FPCB.
Step4: Reflow-High temperature over 65 degrees for finished PCB with chips and resistors.
Step5: Fluorescent Powder glue mixing.
Step6: Drop the mixing glue on the surface of the chips and resistors by auto glue machine.
Step7: Put glued cob led strip into the oven.
Step8: QC-testing the cob led strip after cooling.
Step9: Soldering the PCB into 5 meters per reel on the length as customer request.
Step10: Aging test, QC test, packing, then shipping.
Cutting & Soldering COB LED Strip Lights
COB led strip can be cut just like SMD led strip lights. Please only cut along the cut marks marked on the strip every 50mm(24V),
25mm(12V). This allows you to cut the strip to a custom size or add gaps to your application. The cut strips can be used again and
are best connected by soldering, but if this is often not an option, our COB strip connectors also are available as an option.
Wholesale COB LED Strip By Series
Mono COB dotless led strip
The Mono COB led strip light includes white, red, green, blue, yellow, orange, Tiffany blue, Mars green, pink and more. The color temperature
Of white light is 2700K, 3000K, 4000K, and 6500K, and the CRI is greater than 90.
The width of PCB is 4mm, 8mm, and 10mm optional.
The density of chips is 480 chips per meter.
Tunable white COB dotless led strip
Tunable white COB led strip or CCT adjustable COB led strip, up to 576 chips per meter, no light spots. With the tunable white led controller
You can change the color temperature from 2700K to 6500K. Except the regular 3 wire 10mm width PCB tunable white cob led strip, there
Is also 2 wire 8mm PCB tunable white cob led strip.
