foglamp.
acolyte, airtight, ammonite, andesite, anorthite, anthracite, apartheid, apatite, appetite, backbite, bentonite, biotite, birthright, bullfight, calcite, campsite, canaanite, candlelight, carmelite, cartwright.
Your query has returned 565 words, which include anagrams of headlights as well as other shorter words that can be made using the letters included in headlights.
The words in this list can be used in games such as Scrabble, Words with Friends, Wordscapes and other similar games.