/ Osram 49908 - QTP4X32T8/UNV-ISN-SC-B T8 Fluorescent Ballast

Purchased 2 to replace aging Motorola ballasts that had over 10 years of 8 hours/day use. And these are a great value in just under half of what the home improvement stores sell them for and a third the cost at a lighting store. These went in very easily. The wires are attached to the ballast so I only needed to remove the wires from the bulb socket ends and plug these in. It is almost fool proof. Red wires on one end and yellow on the other end of the bulb. And the other set of bulbs get a blue wire and yellow on the other end. As long as red and blue are not on the same bulbs, its good to go, just follow the wiring schematic on the bulb. I since put in both ballasts and have purchased two more to keep as spares. I did have a bulb go bad on one of the new ballasts and it was very forgiving. Put a new bulb in and it was running again. The old ones seem to knocked out by bad bulbs. The Sylvania seem very robust. They work very well. In fact I have a spare fixture that I already have wired with a new ballast to make change out a snap. Its not really necessary, but having the spare fixture and getting the wires laid out ahead of time works for my shop. The only thing that would have been better...I should have gotten all 4 in the first place. But shipping was very reasonable. And I will order these again.

Bought several of these to upgrade my flourescent fixtures in our garage, laundry room and master closet. I originally tried the 48" LED bulbs in our closet and one garage fixture, and even though they were quite bright, two only lasted a few days and the cost is still astronomical. I have since re-wired the garage fixture using one of these back to flourescent and upgraded to T8 bulbs. Very bright and instant on, the old flourescents were much dimmer, whould take a lot of flickering to come on and always had magnetic waves in them. Rewiring takes a slight bit of McGiver knowledge as I re-used the tombstones that required a bit of re-engineering to get them to make solid contact with the wires. Wiring diagram is included and fairly simple. I replaced two ballasts per fixture with this one as I have 4 bulbs in each fixture. What a difference in the garage and laundry room. My wife almost needs sun glasses for our master closet. I did use 5000K bulbs rather than the warmer 2700K bulbs. But if you do as I did, get the bulbs locally, I ordered a large box from Amazon and several arrived broken. Amazon is known for their customer service, so I just contacted them and returned the entire box for a full refund. Thanks Amazon, that is why I am a loyal customer.

There's a slight pause from the moment I click the switch until the lights come on (half a second) which is different that original operation before this ballast was installed but it seems to do the job and was certainly a good price. Installed in a 4-bulb ceiling fixture, replacing two OEM ballasts that were failing after 7 years of use. The bulbs were a little dark in the middle when first started. After 15-30 minutes, all four new bulbs were brightly and uniformly lit. The power up brightly every time now, albeit after that brief delay mentioned.

worked great with my light. easy to install, saved me from buying another light for $70

I installed 2 of these to refit two old 4 light T12 fixtures. They fit into the same footprint of the old ballast and so mounting screws lined up just fine. Start up is pretty fast and they seem to work just fine. They have plenty of wire attached to the ballast and the wiring diagram is clearly shown on the top of the ballast. T12 and T8's are wired totally different so be sure to follow the diagram closely if you are refitting an old T12 unit. Time will tell how long they last...

The ballast's I received were branded Osram not Sylvania, thank God I ordered 2 because the first one I installed lasted less than 3 months. Don't know what the warranty is because it is not stated on the products detail. If the second ballast only last 2 1/2 months, then this purchase was a total waste of money that has caused me misery because of the chewing my wife has given me for her kitchen light going out.

I received the ballast and installed it in one of my four kitchen lights that apparently had the two old magnetic ballasts. Now I have a single ballast instead of the two ballasts that were for the inside and outside lights. The ballast works fine for four F17T8 24 inch lights. Now that I know it works I plan to order three more to replace the other partially working lights. I couldn't be more happier t have all four tubes working. One other thing the ballast was not marked Sylvania on it, but I am just glad it does work :) It is a subsidiary of Sylvania.

I purchased this 4-tube ballast to retrofit a very old non-working kitchen fluorescent light fixture, which contained a pair of 2-tube magnetic ballasts. The price was low, delivery was much faster than expected (UPS Priority Mail shipped the same day I ordered), Sylvania's 5 year in-home warranty is nice, it's silent, and the ballast is capable of driving any number of tubes, from 1 to 4. (To save money, I'm using two 32W tubes, which uses only a little more than half the power needed to drive four tubes.) Rewiring the fixture was straight-forward... some cutting and soldering of wires behind the 8 sockets. My kitchen has a second fixture, about 5 years old, which contains the same model ballast. It hasn't given me any problems, unless you count the flickering tube (Philips Alto II) that I recently needed to replace. (I actually chose to remove two of that fixture's four tubes rather than replace the flickerer. There was still plenty of light.)

One ballast replaces two old magnetic ballasts in 4-tube fixture. Replaced aging T12's with new T8 tubes (temporary). So bright now I need to wear sun screen! Next step is off to Costco to get LED tubes and start saving energy $$$. Ballast fits exactly into existing mounts in fixture. Connections are easy - turn OFF brain and just match the colors. Does not interfere with X-10 communications as far as I can tell so far. UPDATE: I installed 18W LED tubes. Just as bight! Bad news is the electronic ballast interferes with X-10 communications. Good news is that inserting an inductor (200uH @ 2A.) in series with AC hot wire eliminates the interference. I still love it!

work fine for me , light is on bingo

Based on the scratches seen on the housing and the need to straighten the sheet metal mounting flange on the one end, Im not convinced that where even new items.