Digital ballasts fade out?

[stonedfly]

I know magnetic ballasts loose their power over time, but do digital / E- ballasts do the same thing over time? Ive never seen it discussed before, and have been wondering about a couple lumatek ballasts I have

 

[Andyo]

lamp age

lamp age

more like lamp age id say
lamps better on soft start digital ballasts
High frequency lamps better still.A