### device | lamp:

Flash bulb
* come in various sizes and types.
* feature high intensity, long duration, easy set-up, and low power requirements.
* is photographic equipment
* replaceable bulb for use in expendable flash units.

Flashbulb
* get VERY hot when fired.
* have the unique ability to pulse large lasers.

### device | lamp:

Flashlight
* Many flashlights use batteries.
* Some flashlights produce energy.
* also work.
* are electric lamps
  - hardware
* are located in backpacks
  - suitcases
  - preferable to candles, which add to the soot and can be snuffed out by wind
  - sources
  - the best light source after a major earthquake
* can help children see better.
* help kids see better and be seen more clearly.
* includes flashlight batteries
  - sections
* is an electric lamp
* provide light
  - the safest emergency lighting source

### device | lamp:

Fluorescent lamp
* All fluorescent lamps contain mercury.
* are bulky and of relatively low brightness
  - common in the workplace and are often used in the home
  - good for the environment because they are long lasting and energy efficient
  - hazardous because they contain mercury
  - low UV emitting - red meats are enhanced in faithful color
  - low-pressue mercury discharge lamps that require ballast to start the lamp
* are much more efficient than incandescent bulbs and last six to ten times longer
  - lamps in using energy to create light
* are roughly three times more intense than ordinary light bulbs
  - than ordinary lightbulbs
* are the main source of such noise
  - most commonly used light source in public facilities
* become more efficient when supplied with high frequency power.
* can be more efficient using a high-frequency power supply.
* contain mercury, a toxic chemical that can be an environmental and health hazard
  - small quantities of mercury, cadmium and antimony
  - the toxic heavy metal mercury
* do use gases though.
* don t require high temperatures to produce light, like incandescent bulbs do.
* emit light in all directions from the tube, including up into the fixture.
* find widespread use in homes, industry and commercial settings.
* give off very little heat.
* help seedlings and low-light plants start earlier and grow stronger.
* produce about four times as much light per watt as incandescent bulbs
  - much less heat than incandescent lamps and are more energy efficient
* project a more diffuse light, but do it without wasting energy on heat.
* provide a highly diffuse, cool, white source of light
  - lighting for most schools, office buildings, and stores
  - uniform, even light that is beautiful for cosmetics and accessories
* reduce energy consumption that saves users money
  - consumption, saving users money
* use ballasts to start the lamp and regulate the current flow to the lamp.

Fog lamp
* operate with high beam of headlamp.
* provide a very wide, high intensity short range beam designed for inclement weather.

Gas lamp
* are lamps.
* produce light by means of one or more small gas flames.

### device | lamp:

Lantern
* Most lanterns have light.
* Some lanterns give off noxious fumes that are harmful
  - have mirrors
  - make noise
* are lamps
  - light sources
* are located in antique shops
  - cabins
  - campsites
  - houses
  - streets
* are used for decoration
  - illumination
* help people find the heavenly spirits who are believed to be flying around the full moon.
* includes sections.
* provide light, for outdoor activity.
* turn a reddish color in autumn.
* vary in their capacity to hold fuel depending on the lantern design.

Lightbulb
* Most lightbulbs convert electricity.
* Most lightbulbs transform electrical energy
* also produce heat, however.
* is an electric lamp
* use electricity to heat a filament of tungsten or some other alloy.

Oil lamp
* are inexpensive and give off a lot of light
* made from shells are a frequent find throughout the Middle East.