Rated 4.5 out of 5 by 2
Rated 4 out of 5 by homeowner372 Too early to tell, but so far so good
Was straightforward to install and is working fine - quiet and starts quickly. 1000bulbs did a poor packing job so the unprotected tabs pierced the box and were bent. I complained and they promised to do better in the future. I am hoping the ultrastart ballast will allow long lamp life with more frequent on/off cycles; only time will tell if my hopes are realized.
June 7, 2011
Rated 5 out of 5
by Rich With automatic controls, program Start ballasts are essential.
With ordinary (and less expensive) instant start ballasts, fluorescent lamp life decreases markedly with each on / off cycle. Because automatically controlled fixtures turn on and off more often than with manual controls, lamps can burn out sooner. However, because program ballasts turn on lamps gently and because automatically controlled lamps are generally on fewer hours than with manual control, lamp life is greatly extended.
If you are replacing just replacing a ballast with this type of ballast in an existing fixture, be sure existing sockets are non-shorting, modified to be non-shorting, or replaced with non-shorting sockets.
June 7, 2011