Debuzzing coils are generally recommended, especially for PAR 36 incandescent lamps. Because solid-state dimmers are also switching devices, interference and interaction between dimmer and transformer are likely if they are used together. That can result in strobing, buzzing, and possibly device failures. Most manufacturers of solid-state transformers or dimmers recommend against using them together, and will not warrant equipment that is so used. Dimming increases lamp life for low-voltage lighting, as it does for regular incandescent lamp lighting.
Designers can choose from a surprising variety of options.
Halogen lamps are noticeably whiter than regular incandescent lamps, and are great for commercial display. Many designers find the halogen lamps too white for residential lighting, however, especially fill light, and prefer to use color-correcting filters with them or to use incandescent lamps instead. Franco Ferrini shoe store display lighted with linear shelf lighting and MR16 track. Most linear low-voltage systems operate lamps considerably under voltage to preserve lamp life. These systems appear yellow and dull, especially next to halogen lighting.