SST20 vs SST40

SST20 vs SST40

The SST20 and SST40 are two popular flashlight emitters with different pros and cons. The SST20 is a newer emitter with a smaller die, which results in better efficiency and a cooler beam.

The SST40 is an older emitter with a larger die, which results in a warmer beam. Both emitters have good color rendering, but the SST20 has better color rendering overall.

The SST40 has a more focused beam, while the SST20 has a more diffused beam. The SST40 is also more durable and can handle higher currents.

Main Difference between SST20 and SST40

The SST20 and SST40 are two types of LED flashlights that are popular among flashlight enthusiasts.

Both have their own unique features and benefits that make them stand out from the rest. Here is a quick comparison of the two types of flashlights: 


The SST20 is a newer model of LED flashlight that uses a CREE XM-L2 U2 LED. It has a maximum output of 2000 lumens and a beam distance of up to 200 meters. It is powered by two 18650 batteries and has a runtime of up to 2.5 hours. 


The SST40 is an older model of LED flashlight that uses a CREE XM-L2 U2 LED. It has a maximum output of 4000 lumens and a beam distance of up to 300 meters. It is powered by four 18650 batteries and has a runtime of up to 3.5 hours. 

So, which one is better? It really depends on your needs and preferences. If you need a more powerful flashlight with a longer runtime, then the SST40 would be a better choice.

However, if you don’t need as much power and you want a lighter flashlight, then the SST20 would be

About SST20 Flashlight – Sofirn IF25A Flashlight

About SST20 Flashlight

The Sofirn IF25A is a one-of-a-kind flashlight that comes with a USB-C interface for charging and a variety of different illumination modes.

Because the battery for this flashlight is already installed, all you need to do to use it is remove it from its packaging.

However, the high duty clip that comes with the flashlight makes it equally handy as an EDC fishing or work light.

Its tiny size means that it can easily be carried in a bag or on your person, and its versatility allows it to serve both of these purposes.

SST20 4000k

The SST20 4000K is a high-performance, energy-efficient LED light bulb that is designed to provide superior lighting quality and long-lasting durability.

It is ideal for use in a wide variety of applications, including residential and commercial lighting, and can be used in both indoor and outdoor settings.

The SST20 4000K features a unique design that allows it to emit a bright, white light while consuming less energy than traditional incandescent or halogen bulbs.

It is also significantly more durable than these older technologies, with a lifespan of up to 50,000 hours.

What Are The SST-20-w Leds?

The SST-20-W series is a family of high-brightness white LEDs that can operate at up to 10W and perform exceptionally well in directed specialty applications requiring a high lumen output together with high efficacy.

They complement the ultraviolet-to-infrared-spanning Luminus SST 10/SST-20 line of monochromatic LEDs.

What Is The Sst-40-w Series?

LEDs of the SST-40-WxS series with a high brightness cool white color temperature are suitable for use in applications requiring 15W.

They put out a single beam of light, which makes them perfect for directing specialized applications that require a high lumen output in addition to good effectiveness.

What Are The SST-70x-w Series?

What Are The SST-70x-w Series?

LEDs in the SST-70X-W family that have a high brightness and a cool white color temperature are intended for use in applications that require 15W.

They produce a uniform light that is perfect for directing specialized applications that require a high lumen output along with good effectiveness.

What Is The Difference Between The SSt-40-w And SSt-90 White LEDs?

There are many different types of LEDs on the market today. Two of the most popular are the sst-40-w and sst-90 white LEDs. So, which one is better?

In terms of brightness, the sst-90 white LED is definitely the winner. It is about twice as bright as the sst-40-w.

However, the sst-40-w does have a slightly wider beam angle, which means it may be a better choice for some applications.

In terms of power consumption, both LEDs are very efficient. The sst-40-w uses slightly less power than the sst-90, but both are still very efficient.

So, which one should you choose? It really depends on your needs. If you need a very bright light, go with the sst-90. If you need a light with a wide beam angle, go with the sst-40-w.

About SST40: ThruNite Flashlights

About SST40

ThruNite’s most recent LED Flashlight, the T1S SST40, is an absolute necessity for anyone who requires an extremely powerful LED light.

As soon as you start utilizing it, this flashlight will quickly become your go-to choice due to its compact design, powerful beam, and user-friendly magnet.

And the greatest thing is that it comes with a rechargeable Li-ion battery and an integrated charging cord, which transforms this flashlight into a torch that can be used in any season.

The ThruNite T1S SST40 is a reliable option to go with, regardless of whether you’re trying to improve your current setup or simply expand the number of lights you own.

Is SST40 High CRI?

Is SST40 High CRI?

Yes, the SST-40 is more comparable to the regular SST-20s in terms of its CRI, which is 5000K or higher.

It is only available in CCTs that are higher than 5000K, has a larger emitter area (4 mm2), and does not offer any options with a high CRI.

Because of its bigger size, the SST-40 is capable of withstanding substantially stronger currents and producing a great deal more lumens (than a Cree XM-L2).

What Is SST 40 LED?

High brightness cool white SST-40-WxS LEDs are 15W. They emit monolithic light that is suitable for directing specialty applications that need a high lumen output.

SST-40 is a 3V LED with high power. If you want the maximum output from a 3V LED without sacrificing efficiency or heat, choose this one. FET driver with 2,000+ lumens and 7-8A.

Also Read:

1. A19 vs E26

2. 2700k Vs 3000k


When comparing SST20 and SST40, there is no winner that stands out. Both types of flashlights have advantages and disadvantages, so selecting one depends largely on your priorities when looking for a new one.

The SST40 is the preferable option to go with if you are looking for a flashlight that has a lot of power.

On the other hand, the SST20 is the superior choice in the event that you require a torch that is both more portable and less heavy.

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