We all know that LEDs last longer, use less energy, and don't produce as much heat as incandescent bulbs. However, there are subcategories of LEDs, such as Cree or COB LEDs, which offer users the advantages of regular LEDs, so what is the difference when looking at Cree versus COB LED lights?
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What is the difference between Cree and COB LED lights? The differences are minimal, but there are enough differences to choose between them.
What is the difference between Cree and COB LED lights? Cree LEDs are simply LED lights that utilize Cree chips. There are many reasons why the lighting community praises the chips used by Cree. However, the most common reasons include high performance output, longevity and stability. You can look at the chips to see if they are Cree.
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Cree chips use square chips that are divided into rectangles. cree chips can provide 370 lumens of light to your LED, which is another reason why these chips are so popular. You'll find Cree chips in a number of different places, such as emergency lights, portable lighting, automotive manufacturers, and outdoor and indoor lighting. This means that Cree LEDs are LEDs that use Cree chips.
COB LEDs are chip-on-board LEDs. these LEDs have multiple diodes, each with its own chip to control it. However, the diodes and chips are placed close together on a panel, thus producing a single light source. The best way to think about this is in terms of Light Bright. Remember those toys we played with as kids? When you placed them on a panel, their colored pegs would light up. You can place a colored peg on the panel and get a small light source. Insert multiple pegs next to each other and you will get a piece of light.
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To understand the difference between Cree and COB LED lights, we should understand the difference between a chip and a panel. The chip powers and controls the LED diode. Think of a diode as a small light bulb. A COB LED has many diodes in a panel, creating a single diode that looks much larger.
This large size allows the COB LED to produce light that covers a wide area. On the other hand, the chip controls the diode, tells it how brightly it emits light, and is also able to change the color (if the diode is able to change color). The question is, if COB LEDs have chips, and Cree is the chip brand, can't you just have Cree COB LEDs? The short answer is yes.
Yes, Cree uses its chips to power the diodes to make COB LEDs, but there are still differences between Cree and COB LED lamps. Currently, Cree LEDs include green and blue LED chips with higher brightness. You'll find Cree LEDs in backlighting, general lighting, electronic signage and even signage.
COB LEDs are larger because they are entire diode panels. The heat is also different. cree LEDs generate a lot of heat for a single chip, but can easily dissipate the heat. cree LEDs generate a similar amount of heat, but it is harder to dissipate the heat over time. This means that Cree LEDs may last longer than COB LEDs, depending on how much they are used.
I'm new to really paying attention to flashlights myself, so I pulled up some PDFs, to see if I could figure it out.First, let's get some tedious pedantry out of the way. A COB (chip on board), is different from the other two. Where the XP-L and the XHP are single LED emitters, the COB is a group of emitters, stuck together on one board. You can have a COB that's made with XP-Ls, or XHPs, but you really can't compare the three of them on an equal basis.I'm going to link to the two PDFs that I found. Both are from CREE, I may be in a "gray area", forum-rules-wise, but they're for information purposes.If you read them, you may find your eyes glazing over, like mine did!Near as I can tell, the XHPs are brighter, as in, they put out more Lumens. You have a lot (a lot!) of choices of how "white" or how "yellow" those Lumens look.If I know anything from other gear-related forums, there is no such thing as an objective "best". If you're looking at the LED as the start of buying or building a light, I would argue that there are many other more important factors than the alphabet soup on the emitter. These include, but may not be limited to:CostSizeWeightBody materialIPX rating (dust and water "proofness")Carry method (pocket clip, belt holster, sling)Battery lifeBattery type"Throw" or "flood", or a little bit of both?And, if you're secretly an engineer, and you're just trying to get a feel for what CPF considers the "best", then I'm just gonna go chew on my foot, for a little bit longer.
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