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Sewable LED Ribbon - 1m, 50 LEDs (Red)
Sewable LED Ribbon is quite possibly one of the easiest ways to incorporate simple illumination and color effects into your next e-textiles project! Each strand of this ribbon is a meter long with 50 small red LEDs. These LED ribbons are highly flexible, foldable, and can even make knots. Unlike traditional LED strips, the LEDs in these ribbons have 360 degrees of luminosity, so you can see them no matter how they are positioned or sewn!
Attaching the ribbon is easy; the sewable tabs on each ribbon allow for a 1/4" area that can be sewn down onto clothing, accessories and more. Attaching power to the ribbon is also easy; just strip the protective sleeve below the fabric and connect the exposed leads to power. The LED ribbon requires an input voltage of 4.5V with a maximum current of 250mA.
Sewable LED Ribbon - 1m, 50 LEDs (Red) Product Help and Resources
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Specs for red 1m strip
These appear to have LEDs with a 1.7 volt forward voltage and a 4-5mA maximum current per LED. Since a 1m strip contains 50 LEDs, you can supply a maximum of 200-250mA per meter of strip before LEDs start burning out.
There are NO current limiting resistors in the strip so make sure you include a resistor if you're using a power supply that isn't inherently current limited. (Coin cells are current limited and up to two of them can be used in series on a 1 meter strip without any resistors.)
Core Skill: Soldering
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Skill Level: Noob - Some basic soldering is required, but it is limited to a just a few pins, basic through-hole soldering, and couple (if any) polarized components. A basic soldering iron is all you should need.
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Core Skill: DIY
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Skill Level: Rookie - Basic hand tools are required and instructions will allow more freedom. You may need to make your own decisions on design. If sewing is required, it will be free-form.
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Core Skill: Electrical Prototyping
If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.
Skill Level: Rookie - You may be required to know a bit more about the component, such as orientation, or how to hook it up, in addition to power requirements. You will need to understand polarized components.
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Are these bright enough to be seen in bright day light? I would like to sew them into a sports jersey, but they will be used in bright light and I want to make sure they remain visible.
Not really. In an indoor office... sure. Outside on a sunny summer day... you might be able to still make out the LEDs from a few feet away.
What is the nanometer range for the red LEDs? 620 to 750 nm?