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At present there are several types of light bulbs available for indoor domestic use.

Arranged by their efficiency from least-to-most they are:

Incandescent bulbs (60 watts)

The old style light bulb emitting light from a hot filament

Fluorescent tubes (30 to 40 watts)

Several inch to several foot long tubes emitting light from a vacuum with a trace of Mercury vapour requiring a special fixture

Compact Fluorescent bulbs (15 watts)

Roughly incandescent sized small fluorescent tubes designed to screw into standard light bulb fixtures

Light Emitting Diode /LED's (5 watts)

Small cool running lights using special mini-sockets or designed to fit into conventional sockets.

Notes:

  • Power requirements to provide as much light as a 60 watt incandescent bulb indicated in parentheses
  • Both types of fluorescent tubes contain Mercury and require special handling and disposal requirements
  • Outdoor lights would also include Mercury and Sodium vapour bulbs as well as high powered incandescent bulbs. These are more efficient than incandescent bulbs but the colour spectrum emitted and other aspects makes indoor use unlikely
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Noble Bogan

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2y ago

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More answers

At present there are several types of light bulbs available for indoor domestic use.

Arranged by their efficiency from least-to-most they are:

Incandescent bulbs (60 watts)

The old style light bulb emitting light from a hot filament

Fluorescent tubes (30 to 40 watts)

Several inch to several foot long tubes emitting light from a vacuum with a trace of mercury vapour requiring a special fixture

Compact Fluorescent bulbs (15 watts)

Roughly incandescent sized small fluorescent tubes designed to screw into standard light bulb fixtures

Light Emitting Diode /LED's (5 watts)

Small cool running lights using special mini-sockets or designed to fit into conventional sockets.

Notes:

  • Power requirements to provide as much light as a 60 watt incandescent bulb indicated in parentheses
  • Both types of fluorescent tubes contain mercury and require special handling and disposal requirements
  • Outdoor lights would also include Mercury and Sodium vapour bulbs as well as high powered incandescent bulbs. These are more efficient than incandescent bulbs but the colour spectrum emitted and other aspects makes indoor use unlikely
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Wiki User

13y ago
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