What is COB LED chip?

Chip-on-Board or “COB” refers to the mounting of a bare LED chip in direct contact with a substrate (such as silicon carbide or sapphire) to produce LED arrays. COB LEDs have a number of advantages over older LED technologies, such as Surface Mounted Device (“SMD”) LEDs or Dual In-line Package (“DIP”) LEDs.

What is the difference between LED and COB LED?

The SMD LED light source is a single patch LED lamp bead with a light-emitting diode directly attached to the surface. COB LED light source packaging technology is a direct chip package on the board, COB has improved light efficiency, improved glare effect of LED lights, and reduced light loss.

What is better cob or LED?

But the difference between LED light COB and SMD is that COB LEDs have more diodes. COB chips typically have 9 or more diodes. … Another aspect of the COB vs SMD LED Lights difference is in the use of energy. COB is known for better lumen-per-watt ratios and heat efficiency.

How long do COB LEDs last?

Even if the initial investment is higher, a quality LED fixture will last AT LEAST 30,000 hours. So it’ll pay itself off over time.

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What does COB work light mean?

A COB light is a type of LED light, with COB standing for Chip-On-Board. … They are also the kind of LEDs you might find in a control panel to indicate when a switch is on or off. DIP LEDs are cheap, but they are bulky and not very powerful.

Why are COB LEDs better?

Advantages Of COB LED Chips

These are the biggest advantages of COB LEDs for growing: Higher light density: many small diodes in a tight space makes for a much higher light density, meaning you need less space to produce more light.

Do COB LED need heatsink?

In the case of COB LEDs, it is possible to directly attach a COB LED to a heat sink (see Figure 2). As a result, COB LEDs do not require PCBs in order to install LEDs into a luminaire and the subsequent reflow process is no longer necessary.

Are Cree LEDs the best?

CREE – The best of the very best, CREE LEDs are like the Apple in the world of LEDs, or we like to think of it that way anyway. CREE’s are super high-performing, energy-efficient LEDs which provide a crisp, but low-glare output.

How hot do COB lights get?

The only data sheet I can find for these generic Chinese LED’s shows a max temp of 80 Deg C (176 F). I’m getting temps far higher than that. Possibly the LED’s are really efficient and pump out most of their power as light. Maybe I should be asking what the efficiency of an LED is.

How do you test a COB LED?

Measuring Voltage

  1. Plug your black lead into the common input, and plug your red lead into the input marked with a “V” (voltage), “Ω” (resistance), or ANYTHING but an “A”. The input marked “A” is for measuring amperage, or current. …
  2. Switch your dial to DC Voltage, which is what LED drivers put out.
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Are COB LED lights dimmable?

Dim-to-Warm is COB LED which works like halogen lamp when dimmed. Its specialty is that when you dim it the color temperature gets warmer. Usually dimming does not affect the color temperature of the LED. … It’s perfect for space where you want to have dimmed and warm toned atmospheric lighting.

Do COB LEDs need drivers?

To do it correctly, you use a constant current driver for each CoB or get as driver that with a high enough voltage (e.g. 80v or more) to drive them all in series with one driver. … Your supply is a constant voltage supply. They do not work well with LEDs.

How does a COB LED work?

COB LEDs use a single circuit with just two contacts to energize the multiple diode chips it houses. This results in fewer components required per LED chip for proper operation.

What is Cree COB LED?

Optimized to simplify designs and lower system costs. … Optimized to simplify designs and lower system cost, Cree’s CXA LED arrays deliver system level performance from 300 to over 16,000 lumens and can enable applications ranging from GU10s and commercial downlights to outdoor area lighting and high-bay lighting.

What is COB mode?

Chip-on-Board or “COB” refers to the mounting of a bare LED chip in direct contact with a substrate (such as silicon carbide or sapphire) to produce LED arrays. COB LEDs have a number of advantages over older LED technologies, such as Surface Mounted Device (“SMD”) LEDs or Dual In-line Package (“DIP”) LEDs.

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What is a cob flood light?

COB ( chip on board ) LED products are slowly starting to seep into the market , it is set to take the whole industry by storm soon. A chip on board LED is basically a LED chip diode built directly on the the circuit board.

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