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LEDs By The Dozen
Light emitting diodes. Solid state devices that provide the ubiquitous power and indicator lights on your electronic gadgetry. Unlike lamps, there are no filaments that glow. Rather, some two volts of DC power at a miniscule 10 to 20 milliamps of current get the chemistry excited, and they just plain emit. Emit is a good word, too, as they don't really cast light, but glow brightly. We have a nice assortment of 3 and 5 MM diameter sizes in red, green, orange, and yellow. The longer lead is always positive, the shorter always negative, and you always need a current limiting resistor (about 500 to 1,000 ohms for 5 to 9 volt DC sources) to keep the current in the 10-20 MA range. If that's Greek to you you're either going to blow a lot of LED's or learn to change incandescent indicator lamps ! !
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6796 LED ASSORTMENT |
Flashy Pendants
A splashy, flashy necklace for your next rock concert or Star Wars convention. A 5/8” dia shiny plastic disco ball that catches the lights and can be manually spun on its axis. This 3–5/8” long silvery-gray plastic pendant hangs from a 21” black cord with a magnetic clasp, and has red and yellow LEDs that can be on, off or set to flash in various patterns. Powered by (2) “SR44” button cells that are already in it!
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35047 DISCO BALL PENDANT |
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You're Feeling Calm...
Very calm. You're sensing inner peace and seeing the comforting, soft lights at the very core of consciousness. It's on account of you've got the Color Cube, dude. It's a soft white cube, 2-7/8" on a side with internal LEDs that morph from purple to pink, light green and blue every (5) seconds or so. Its (3) button-cell batteries are included, but this would still be a good time to order extra batteries, especially if you intend to sense inner peace for a long, long time.
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92756 COLOR CUBE |
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