Philips Advance VEZ-1T42-M2-BS Mark 10 Powerline Dimmable Programmed Ballast Philips Advance Mark 10 Powerline dimmable ballasts Full range continuous dimming (100% light output down to 5% - T5HO to 1%) Programmed start operation potentially extends lamp life in frequent switching applications. Easy cost effective and sustainable power solution without the need for additional control leads. Compatible with controls from a wide variety of manufacturers for maximum versatility.