There should be a clearance of 3 inches between a non-ic light and any nearby insulation.
IC-rated fixtures provide the correct housing for use with blown insulation commonly found in today's attics. device structure without IC rating. non-IC rated devices are constructed with only a single can or case and holes in the case for ventilation. these lights are ideal for areas where insulation is not required.
IC (Insulated Contact) rated implantable devices can be safely used with insulation without the risk of overheating. IC-rated devices shut down when the device overheats, preventing heat from spreading through the insulation.
The abbreviation IC stands for insulation contact. therefore, the IC rating is essentially a measure for determining whether a downlight is suitable and safe for contact with insulation. a layer of insulation in the ceiling and walls protects most homes today.
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