COMPATIBILITY: 1999 - 2002 Chevy Silverado 1500/2500 2000 - 2006 Chevy Suburban 1500/2500 2000 - 2006 Chevy Tahoe Includes all submodels: 1500 / 2500 / LS / LT / LTZ / WT / Z71 *** For more detailed compatibility list, please click on "Compatibility tab" on the top of this page. PACKAGE INCLUDES: 2 x Headlights ( 1 x Driver's side and 1 x Passenger's side ) 1 x Front Grille Installation instruction are Not included FEATURES: .
Your questions are too vague , thus I'm answering NO to all question. The fact that the one side worked for a second and burned out was a wrap I ordered the bulbs and replaced and ret-wired them myself. Luckily I'm familiar with wiring and even if you recommend a professional installer should install these your are selling to the open public you should supply some kind of instructions. Or stop selling them to the public and just distribute through shops!!!! Can't recommend you because I wouldn't do that to a friend.