| This are the replacement bulb for just about any H-4 halogen headlight and it puts out the blue light. Be sure to check your individual states laws requarding the use of the blue lights. For more information on electrical short falls on 240 z's go to our website at www.zspecialties.com and go to the menu on the left side, click on tips and info, then scroll down to electrical and click on that tab. It will inform you about numerous electrical problems that exist in all 240's and how to cure them. | 
