Streamlight® C4 (Controlled Collapse Chip Connection) Technology LED Flashlights

Thanks to a technology known as C4, Streamlight is able to triple the brightness of an LED. Our new LED lights that use C4 technology have an intense, long-reaching bright beam that pierces the darkness. These new, bright C4 Power LEDs are made possible by a combination of a new diode chip and Streamlight's innovative use of reflectors to magnify, direct, and intensify the light beam.

Streamlight introduces C4 LED Technology. With a brighter, more powerful, blinding light than any LED that’s come before. The Streamlight-engineered reflector with C4 Photonic Crystal technology triples the brightness and creates an intense beam that pierces the darkness. So you get the long-run times and indestructibility of an LED with a new level of brightness that leaves other LEDs in the dark. More and more Streamlight flashlights are being equipped with the powerful C4 LED, making them the perfect solution for a wide range of professional tasks that require extreme brightness, while benefiting from exceptionally long run times. The enhanced LEDS are made possible by a new development in laser chip manufacturing called Controlled Collapse Chip Connection or "C4". Because no two LEDs are precisely alike, Streamlight has carefully selected only LED suppliers that incorporate world-class technology in order to consistently produce 'prime cut' power LEDs. This means that our customers can be assured that Streamlight Flashlights with C4 LEDs are consistently bright, with improved light output efficiency.

Whenever you see the "C4 LED" symbol on Streamlight® packaging, its your guarantee that you are getting one of the brightest and longest-running LED products money can buy. But, while most people assume that the term C4 refers to the LED itself, in actuality, it's shorthand for a powerful combination of technologies. These include new Photonic Crystal and Thin Film Flip Chip technology that enhance the efficiency of LEDs; Streamlight's high quality reflectors which help focus and intensify the LED light; and, finally, expert Streamlight engineering design which "drives" the operation of the flashlight in such a way that maximizes the overall effectiveness of the LED chip.

The result is a growing family of LED flashlights, lanterns and headlamps with ultra-long run times and which double -- and, in some cases, even triple -- the brightness of previous LED products.

The C4 Formula

It all begins with the careful selection of "prime cut" power LEDs. Like snowflakes, no two LEDs are precisely alike. That's why Streamlight sources its power LEDs from suppliers which incorporate "the latest" technology in the manufacturing process, yielding the highest LED power chips with remarkable lumen per watt ratios.

The LEDs are selected from the highest output bins available. However, it's not the power LED alone, but also the unique way in which Streamlight drives it which creates such extreme levels of brightness and long run times. An innovative Streamlight-engineered reflector further enhances the "throw" of the LED light, creating an intensely strong, tightly focused beam, even at long distances, while generating optimized "spill" light for easy target identification.

But Streamlight doesn't stop there. Streamlight designs and engineers each internal flashlight component – including the switch mechanism, lens type and battery source, whether lithium, alkaline or nickel cadmium -- to drive the LED's performance in a way that is most effective for each flashlight's intended use.

The end result is a consistently bright, intense beam that pierces the darkness while delivering the long run times and indestructibility which characterize LEDs with the light output to rival historically brighter incandescent light sources. So the next time you see the Streamlight C4 LED symbol, remember that it stands for more than the LED itself. It's your assurance that you are getting the best LED technology backed by Streamlight-engineered reflector technology and expert design know-how. That's one powerful combination -- exactly what you expect from the flashlight leader- Streamlight.