I opened up a night light that sits flat against the wall (only about 1/4" thick). It is basically a flat square that plugs directly into the receptacle. Inside, I found a paper-thin material that looks black on one side and a silver on the other. The silver side lights up a soft glowing green color when it is connected.

What is this material, and where can I get a larger quantity of it?

  • \$\begingroup\$ Without seeing it, I would say it's a LED with light-transmitting material, like a glass. \$\endgroup\$
    – Eugene Sh.
    Jul 21, 2016 at 16:43
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    \$\begingroup\$ Please add a picture. \$\endgroup\$
    – David
    Jul 21, 2016 at 16:45
  • \$\begingroup\$ Can you also provide a product part number for the night light? As mentioned, a picture is also necessary. \$\endgroup\$ Jul 21, 2016 at 18:44
  • \$\begingroup\$ Night light model 99905. It is definitely electroluminescent like Ignacio Vazquez-Abrams said. \$\endgroup\$
    – K. Cut
    Jul 21, 2016 at 19:01

1 Answer 1


It's an electrolumiscent (EL) panel. It comes in various colors, sizes, and shapes, including a wire-like form.

  • \$\begingroup\$ +1 I'm a bit surprised these are still around, but the blue-green light is a dead giveaway. \$\endgroup\$ Jul 21, 2016 at 17:21
  • 1
    \$\begingroup\$ @SpehroPefhany EL is very hot in pop-DIY right now, in all shapes, sizes and types. \$\endgroup\$
    – Asmyldof
    Jul 21, 2016 at 18:33

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