I just bought this ballast from Amazon and Philips F40T12/CW from Homedepot. Upon turning it on, the bulbs are not uniformly bright. Why?
486400
how many bulbs are connected and what model bulbs? The wiring must be exactly to diagram on ballast.
486401
By not uniformly do you mean one bulb overall brighter than the other, or either bulb has bright and darker patterns of light emitted along the length of the tube? Make sure bulb pin connections are well seated, clean, corrosion free, and aligned on every pin. Many fixtures aren't very well made in this area. Put 2 different bulbs in for a test from another correctly working fixture if you have one or put your Philips lamps in another fixture. Best I can do. Haven't installed my ROBERTSON-RSS240T12MVIP yet. Hope my results aren't the same.
1026504
Usually voltage regulation going to the light. Check the volts and if it is on point then it may be a faulty ballast.
1480029
The light is brighter than the fluorescent lamps. I replaced all my fluorescent lamps and I'm very happy. I find that removing the ballast at least for me the leds were the brightest. I hope this helps.
977268
Find one with a higher wattage equivalent, they work but not as bright as i would like. I also need to keep one of the original bulbs in the circut. (7) LED & (1) regular filament bulb. If I didn't bulbs would constantly flash. Has to do with Malibu transformer voltage regulator.
1474505
Clip the wires close to the ballast. Wire one end of fixture positive, one end negative. There are lots of youtube videos that help explain it.
2019217
I found it was just cheaper and less trouble to replace the ballast. I also discovered that the ballast life depends upon whether the lights are off when the starter is actuated. If the lights are on when my starter is actuated, it causes a low voltage/high current situation in the ballast nearest the battery. I had two units from different manufacturers fail like that before I figured out what was going on.
1704934
Hamhock is correct; not to be found in your average retail store at all. Also, if possible before ordering- make sure it is the bulb you need and not the ballast! I bought two bulbs only to find out later it was the ballast which had failed, argh!
791726
!!! NO !!! Nor can you use a Different Wattage Lamp! Ofcourse, I guess you could take all the "Ballast Stuff" out and then replace with just a "Regular Bulb"
1320527
Daniel: please read the review I wrote on December 6 2011 "Excellent electronic ballast for one F40/F34 T12". It describes the slight difference in wiring that I encountered on that installation and the wiring conventions I followed. Perhaps it will help.
800571
Yes ,i did it just worked fine. my ballast is for 600Wthe bulb works in 100% 75% and 50%!
1916905
Take the bulbs out and remove the ballast cover. Then cut the wires between the ballast and the switch on the fixture. Attach the power wires to the power wire coming from the switch and make sure the negative is solidly connected as well. Then plug the bulbs in and place them back at back in the holders. You will notice that they are brighter than you are used to. This allows you even more savings because you don't need that many on unless you want more light. Hope I was able to help, let me know if you need more help. Luck, Bob
1093065
Changing the circular bulb is one thing. Getting and changing the ballast quite another. I would suspect that the cost of replacement may be close to the cost of a new mirror. Doing it yourself is not always successful and therefore you could loose your entire investment and the time. Get a new mirror.
1214825
Not sure does your cfl have a built in ballast. I tried plugging in my bulb but no light. Turns out the bulb I had didn't have any electronics inside like most standard cfls
225075
I used that bulb in a digital and a magnetic 1000 watt ballasts worked fine but only lasted 6 months and no warranty. I replaced it with one from a local grow store with a year warranty for $60 and don't have to mess with damaged bulbs in shipping and the wait.
750254
I've noticed mine does not start up very well. Twist the bulb as if removing and then reinstall. It won't start immediately. Also, the indicator is not an LED like it looks, just a lens to the inside. Turn of the lights or shield ambient light, it might be on, you just can see it.
82149
I had problems with my OPT7 55W system. Problem 1: Bad Ballast. Trouble shoot by switching ballasts & lamps to detemine if this is a problem. Contact Opt7 & they will send a replacement. Problem 2: Power & Ground from existing wiring harness to Ballast. Eliminate as many connectors & splice wires directly to each other. Install relay to get power from a reliable source. Ground negative side to reliable ground point.
1699722
Sorry no help here but I had the same issue and I would see it fluctuate back and forth so I just got a new ballast. These were known to have lots of problems I was given mine by a hydro shop owner who did not want to deal with them anymore even the company would not accept them back. Goodluck