Light emitting bulb, luminary and illumination device using led

A luminary, comprising:

• a light emitting bulb, comprising:
• a main body having a plurality of light emitting units disposed therein;
• a bulb cover disposed on the main body;
• and
• a bulb base connected to the main body and having a plurality of flexible pieces electrically connected to first ends of the light emitting units, respectively and a bottom electrode electrically connected to second ends of the light emitting units, each flexible piece having a flexible portion;
• and
• a lamp holder for holding the bulb base, comprising:
• a hold body;
• and
• a plurality of conductive pieces disposed on an inner sidewall of the hold body and corresponding to the flexible pieces;
• wherein each conductive piece has a positioning groove corresponding to the flexible portion of the corresponding flexible piece for positioning the flexible pieces respectively.

An illumination device, comprising:

• a light emitting bulb, comprising:
• a main body having a plurality of light emitting units;
• a bulb cover disposed on the main body;
• and
• a bulb base connected to the main body and having a plurality of flexible pieces electrically connected to first ends of the light emitting units and a bottom electrode electrically connected to second ends of the light emitting units;
• and
• a control unit electrically connected to the flexible pieces of the bulb base for selectively providing a power to the light emitting units through at least one of the flexible pieces.