Can Halogen Bulbs Be Used in Enclosed Fixtures

Incandescent: Element of group vii

Due to the addition of halogen gas and in some products a coating that reflects infrared free energy, halogen incandescent bulbs are somewhat more efficacious (the amount of low-cal produced per unit of measurement of input power) than common incandescent bulbs. Yet, element of group vii bulbs offer significantly lower efficacy and shorter life than fluorescent and LED bulbs. Restrict their use to applications where curt hours of employ are expected, or where at that place are no other alternatives.

Some halogen bulbs have a pivot base of operations (bi-pin). Halogen bi-pin bulbs just fit into fixtures designed exclusively for their use. Halogen screw base bulbs fit into the same medium-based sockets as common incandescent bulbs.

Halogen bulbs have an inner capsule that contains element of group vii gas, which extends bulb life. Element of group vii infrared (IR) bulbs also take a reflective blanket to redirect infrared free energy dorsum onto the filament to save energy. Most halogen bulbs use about one-quarter less free energy than the standard incandescent, but recently some halogen lamps take entered the market that use one-half the free energy of standard incandescents.

Tube-shaped halogen bulbs (J-type) are made of quartz glass to withstand high operating temperatures. They may exist double or single ended and are available in a diversity of lengths and wattage. Considering of their high operating temperatures and unique bases, thermal control and socket design within the fixture are important. exercise not touch J-blazon bulbs with bare hands considering loftier temperatures may fissure the quartz bulb if it has been etched with oils from hands and fingers. The bulbs must be protected by a glass cover in the fixture to prevent potential impairment from seedling rupture.

Cautions

• Halogen bulbs go very hot. Keep combustible materials away from the seedling and avoid touching while in apply.
• Halogen bi-pin and J bulbs tin outburst, and therefore, should be used in a fully enclosed fixture to provide shielding. In add-on, the bulbs produce ultraviolet radiation that may exist harmful if low-cal is not showtime absorbed or filtered by a glass shield.
• Halogen bulbs can exist dimmed, just occasionally they should be operated at full low-cal output to retain long life.

Example Patterns

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Source: https://www.lrc.rpi.edu/patternbook/equipment/incandescent-halogen.asp#:~:text=Halogen%20bi%2Dpin%20and%20J,enclosed%20fixture%20to%20provide%20shielding.&text=Halogen%20bulbs%20can%20be%20dimmed,output%20to%20retain%20long%20life.