The spelling of "LGHTS" seems strange and confusing, but it is actually an alternative spelling of the word "lights". The lack of vowels in this spelling can be explained through phonetics. The IPA transcription for "lights" is /laɪts/ which includes the sounds for the vowel diphthong /aɪ/ and the consonant /ts/. By removing the vowels from this transcription, we are left with /lghts/, which reflects the unique spelling of this word. However, it is not a commonly used spelling and may cause confusion for readers.