What is a COB LED light bulb?

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?

But the difference between LED light COB and SMD is that COB LEDs have more diodes. COB chips typically have 9 or more diodes. COB chips also only have 1 circuit and 2 contacts, regardless of the number of the diodes. … COB is known for better lumen-per-watt ratios and heat efficiency.

What does COB mean on LED lights?

Relatively new to the LED market, chip on board (COB) LEDs offer many advantages over the standard options. COB LEDs are basically multiple LED chips (typically nine or more) bonded directly to a substrate by the manufacturer to form a single module.

Are COB LED grow lights better?

But COB isn’t just known for its compact size, it also has more light intensity, and advantages than traditional LEDs and other grow light types. … Budget & easy-to-use COB LED grow light greatly suited for veg plants. Better combined with other lights for higher intensity.

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Which is better Cree or COB LED?

The CREE LED lighting system has a larger size and a PCB area that is wider than its COB counterpart. Both of the LEDs generate large quantities of heat when they are both being used. … By being wider and bigger, CREE can dissipate a higher volume of heat into its environment. This simply means that it is longer-lasting.

Which is better SMD or LED?

One of the biggest improvements is that SMD spotlights offer a higher lumen output for a lower energy consumption – making them more powerful and energy efficient than older LED lights. This is because they work on the principle that fewer and larger SMD LEDs produce a greater lumen output.

How long do COB LEDs last?

Even if the initial investment is higher, a quality LED fixture will last AT LEAST 30,000 hours.

Do COB LED need heatsink?

The abbreviation COB refers to Chip On Board. … 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.

Which brand of LED lights are the best?

The Best LED Light Bulbs on Amazon, According to Hyperenthusiastic Reviewers

  • Sunco Lighting 6W Dimmable G25 LED Vanity Light Bulb Warm White 3000K (10 Pack) …
  • AmazonBasics 25 Watt Equivalent, Clear, Non-Dimmable, A19 LED Light Bulb, 6-Pack. …
  • Philips Hue A19 LED Smart Bulb.

9 апр. 2020 г.

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Do COB LEDs need drivers?

3. LED Drivers. LED drivers are the handy little boxes that take the power from your electrical outlet and convert it to a form that the COBs can use. The electricity coming from your outlet is alternating current (AC), and this does not work for COB LEDs – they require direct current (DC) instead.

What does SMD mean on LED lights?

SMD means surface mounted diode. This is a better technology than the first generation DIP LEDs. The SMD type LEDs are mounted on an aluminum substrate and enveloped in an epoxy resin.

What is the best LED grow light 2020?

Gavita Pro 1700e Gen 2 LED Grow Light

The Gavita Pro is already the most efficient LED on the market, and also one of the most powerful. It produces 1700 µmol s-1 PAR and pulls 646 watts from the wall. It works incredibly well in commercial grows and greenhouses and carries a manufacturer’s warranty of 3 years.

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.

Is Cree LED 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.

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Are Cree LED lights any good?

The 40 W and 60 W Cree bulbs have a CRI rating of 90, one of the highest out of all the bulbs we tested—and far closer than LEDs in the past have come to mimicking that incandescent-quality glow. We found that the Cree bulbs had the best color fidelity—colors as they appear in real life.

Are Osram LEDs good?

The results are close, but Black Oak finds that overall Osram LED lights outperform a Cree LED. In most Black Oak light bars, such as their 40-inch, curved dual-row D-Series bar with up to 44,000 raw lumens of night-crushing light, they offer only Osrams with a choice of power levels.

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