COB vs SMD LED Lights

Now COB is not only apply in led replacement bulb ,but also apply in LED Headlight

COB LED Headlight has come ,have you prepared ?

While when we say COB ,people will think of SMD, so what’s the difference of them?

LED lights continue to grow in popularity among automotive enthusiasts, thanks to their impressive specs; LED light bulbs last up to 25 times longer than traditional incandescents, deliver an average of 83 lumens of light per Watt of energy used (right now - this is expected to improve to 150 lumens per Watt by 2020) and as worldwide production of LEDs grows, consumer prices continue to drop.

LED lighting technology is also growing rapidly; there are now three major types of LED lights available; DIPs (a.k.a. old-school LEDs), SMDs and COBs. Here's a brief rundown on the two most common types of LED lights currently in use today - COB LEDs and SMD LEDs.

SMD LED BASICS

Surface mounted device light emitting diodes (SMD LEDs) are the most common type of LED lights right now - these consist of a LED chip that is permanently fused to a printed circuit board, resulting in solid units that can be connected in a simple circuits to create various lighting configurations (including light bulbs and strip LED lights).

Up to 3 diodes can be fused onto a single SMD chip - this gives SMD LEDs the ability to output a huge range of colorswhen a chip is built using blue, red and green diodes (while the old-style DIP LEDs are mono-colored).

SMD LEDs are available in a range of dimensions - tuners might be familiar with the two most common sizes, SMD 3528 and SMD 5050; those are the two most common sizes used for 12V LED light strips.

COB LED BASICS

Chip on board light emitting diodes, aka COB LEDs, are the newest type of LED lights to hit the market. Like SMD LEDs, COB LEDs consist of multiple diodes that are soldered directly onto a microchip, however, unlike SMDs, COBs typically use 9 or more diodes per chip - this produces a light that looks like a glowing panel (rather than a bunch of tiny little lights as with SMDs).

COB LEDs are extremely ' heat efficient'; they produce very little heat, thanks in part to their cooling ceramic substrate. Unlike SMD LEDs, COB LEDs do not have the ability to emit different light colors, however, the light temperature (such as warm or cool) can be controlled.

COB LEDs do boast a higher lumen-per-watt ratio in comparison to both SMD and DIP LEDs, thanks in part to the fact that COB LEDs use a single circuit and just two contacts, regardless of how many diodes are on each chip.

Because they are relatively cheap to manufacture, consumers can look forward to lower prices on COB LEDs as production of this latest generation of LED lights ramps up.

WHAT'S BETTER - COB OR SMDS?

That all depends on your application. If you're looking for color-changable interior and/or exterior accent lighting, you'll need to go with SMD LEDs; if you want the maximum lumens per Watt for a mono-colored light (such as a fog light, headlight or dome light) you might want to check out what's available in COB LEDs. 

Which one will you choose and prefer to ?

2.LED Headlight Difference

Today one of my customers feedback they buy the fanless led headlight from another company and their price is much cheaper than ours

Though I have say some difference to him with ours and others ,he doesn’t believe it

Pls check the pic of ours and others,

The first one is our pic: Philips LED ,whole aluminum good for heat dissipation

The second one is other company’s pic :Taiwan LED, plastic body

The LED is the main part for led headlight for the brightness ,luminous attenuation,uniform color and lifetime. Heat dissipation is the key to affect the lifetime. Material,process and details all will be important to the cost

Which kinds you like?

3.The effective lumen for led headlight

Cause the end users are not sure which lights are good and they only check the figure of the lumen and power. But this lead a problem that many sellers and factories write the lumen and power higher to attract customers and show their quality and brightness.

The led headlight comes out to the market for about 3 years ,now in this industry the effective lumen can only be about 2000lm for low beam

Showing the test result

So when choosing the led headlight ,be caution and not only care about the lumen,you can test it and light up to see the brightness