The Smith Crystal is a keychain that will light up with your logo!!
Perfect as a commemorative give-away, premium souvenir, key ring attachment or as a quick emergency light source, etc.. Can be customized with a logo or a fully three-dimensional image. The light employs a coil, traveling magnet, and capacitor as a power source, thereby removing the need for batteries. They are designed to be basically ignored until needed, with no maintenance whatsoever. Shaking the light charges the capacitor which powers the LED. Simply shake the light and the large magnet in the center travels back and forth, repelling off of opposite-pole magnets at either end of the travel tube. As the magnet travels through the central coil, a capacitor is charged, giving reliable,instant light source for emergencies.
Warning: As a result of the strong magnetic field generated by these lights, the lights MUST be stored and used away from anything sensitive to a strong magnetic field. DO NOT place near a TV, monitor, floppy disks, hard drives, credit cards (don't stuff it in your back pocket with your wallet!), video tapes, or sensitive electronics.
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- Powered with a high-intensity, super-bright bluish-white LED light
- Solid-state light emitting diodes (LED's) do not burn out
- Typical lifetime: Over 11 years of continuous use
- Push-button for easy on/off
- Size: 2inches in width by 4 inches long