David Hasselhoff wore already a light jacket in 1989 after the fall of the Berlin Wall. And at the moment there is still not a commercially available light jacket on the market. That made Neffa wonder why. Neffa wanted to show that it could be fairly easy to have lighting in your jacket and still be able to wash it by simply removing the electronics. This also gives you the opportunity to change the color of the light by changing the wire. For this jacket is was important that it looked like a regular jacket and one would not recognize the lighting when it was turned off. So Neffa incorporated the EL-wire inbetween 2 layers of fabric. When turning on the lights, this gives an element of surprise.
Neffa used electroluminescent wire because it needs less battery power than LEDs. The wire has 3 options: on, blink or off. This could be very good for visibility during nighttime when for example riding you bike.
Electroluminescent wire (often abbreviated as EL wire) is a thin copper wire coated in a phosphor, which glows when an alternating current is applied to it. It produces a 360 degree unbroken line of visible light. And its thin diameter makes it flexible and ideal for use in a variety of applications such as clothing or costumes. EL wire requires a low-power, high frequency driver to cause the wire to illuminate.