Elstein IOT/75 and IOT/90 heaters are ceramic infrared dark heaters with E27 screw caps. The standardised E27 thread allows easy and safe installation, as the heaters can be screwed in like bulbs into porcelain or metal sockets with porcelain insert. Due to their simple connection, IOT/75 and IOT/90 infrared heaters are suitable both for individual operation and for configuring groups of heaters. They have diverse applications, in particular they range over terrariums/pets and livestock, breeding, medical and catering technology. The power can be adjusted using a proprietary dimmer. Elstein IOT/75 and IOT/90 heaters are available in two power levels of 60 W and 100 W or rather 150 W and 250 W.