I was installing dimmable LED lights in my kitchen that no longer required a ballast transformer. This means that I needed to replace my shunted (shorted) tombstones with non-shunted. I needed four for each fixture. I wanted something that would replace the current tombstones with a minimum of effort. These performed the task perfectly, and were VERY inexpen$ive but with VERY good quality.

Perfect replacement parts for rewiring T8 fluorescent fixtures for non ballast LED bulbs. Package of twelve is enough for three double fixtures. No guesswork, just follow web links for schematics. Use existing wiring in old fixtures for rewiring leads and jumpers. Takes about 5 minutes per fixture. Disconnect power source, replace existing tombstones, no splicing, all terminals are double, push fit. Install LED lamps, reconnect power, and you'll cut your fluorescent load in half. W, and with LEDS, I expect years of service, no more yearly bulb changouts and dark bulb ends.

Great price and product. Just what I needed to convert my 35 year old kitchen Fa8 T12 fluorescent fixtures to LED. The local big box store wanted more than twice the price for these. They arrived in 2 days. I used them with Hyperikon® T8/T10/T12, 6ft LED Light Tube, Dual-End Powered, 28W (65W equivalent), 3400 Lumens, 4000K (Daylight Glow®), Frosted Cover, UL-Listed - (Pack of 4) which I also bought on Amazon.

These seem like decent quality and they have been working well. Be aware that they are shorter than many original tombstones, at least shorter than in the 3 fixtures I have retrofitted so far. They were, however, comfortably long enough in two of the fixtures and just barely with a squeeze long enough in the third. I am going to to also buy some longer tombstones so I have an option of shorter or longer for the rest of my fixtures.

Critically important to my upgrade of old T12 fluorescent tubes to more efficient and brighter LED T8 Tubes (you can see my reviews of various awesome Kobi Electric LEDs), these worked very well. Suggestion, as you plan your Fluorescent Tube to LED Tube conversion, get the required number of these in hand. That will save you some angst during the conversion. More advice: almost all LED Tubes take line voltage, meaning you will be cutting wires at the old ballasts or removing the ballasts if they are leaking or if you just want to. And almost all LED Tubes take power from one end ONLY of the tube, which means, you likely will need to replace your lamp holders ONLY on one end of the fixture that holds the Tubes. Likely, you will simply need to cut the wires to the other lamp holders and use them only as un-wired "clamps" to hold the Tubes. Said another way, you do not need Non-Shunted lamp holders for the end of the Fixtures that will hold the Non-Powered end of the LED Tubes. More detail is included with my review of the Kobi Electric LED Tubes, and you can find the important Map Key to the Ins and Outs of these tombstones here: The Kobi instructions show the Ins and Outs of the separately available Line/Black and Neutral/White on non-shunted tombstones very clearly here: https://www.1000bulbs.com/pdf/kobi-ledt8f4180041nb-installation.pdf . High Quality NonShunted Tombstones are available through Amazon here: http://smile.amazon.com/LEDwholesalers-Non-Shunted-tombstone-fluorescent-replacements/dp/B00DZIGJX6/ref=sr_1_fkmr0_1?ie=UTF8&qid=1406512065&sr=8-1-fkmr0&keywords=t+nonsunsted+tombstones. Hope this helps make your conversion more efficient. Plan your project well, and You can do this!