hykolity 20 Pack 4FT LED T8 Hybrid Type A+B Light Tube, 5000K, 18W, 2300LM

One of the better purchases I made in a while. I converted all of my conventional lights in my pole barn over to led. They work perfectly. Fast start and extremely bright. Planning on upgrading my 8' lamps over in the future.

I just finished installing Hykolity AB18W5K-FYV2-20 LED lamps in my first basement fixture, replacing four Sylvania fluorescent T12 4100K 2200 lumen 40W lamps and eliminating the two ballasts from the fixture. I had purchased 3 boxes (30 lamps) of the Sylvania T12s about 25 years ago to have replacements for the three 4-lamp fixtures in the basement, and recently was reaching the end of the third box. When I got them on sale way back when they were less than $1 per lamp. The fixtures are from the late 1990s, so they had classic non-electronic ballasts (two Advance RM-2S35-TP per fixture). The box of LED lamps arrived in good condition, no broken lamps and no box integrity issues. I just needed to follow the instructions to cut the ballast wires (close to the ballast), tie the Line and Neutral wires together at each end and connect to the appropriate supply wires. If you're used to simple house electrical wiring projects, this is not a difficult job. You can see where the internal LED strip is glued to one side of the lamp, you want that side facing into the fixture when you twist the lamps into position (or the other way around if you want the light output to bounce off the fixture and thus dim the brightness slightly). I wanted full brightness, and they are definitely brighter and bluer (as expected) than the Sylvania T12s.

I purchased this item a few days ago to replace 16 dying regular T8 fluorescent bulbs in my garage (four fixtures of four lights each). I read the reviews and was apprehensive about the quality of these lights and shipping. There's a number of reviews complaining about broken lights, delays in turning on and flickering. Let me address those separately. The light bulbs: These bulbs are "plug-and-play" replacements for T8 lights. You can plug then directly on a fixture with an electronic ballast (most ballasts today are electronic) or open the fixture and rewire it, taking the ballast out of the circuit (making them slightly more energy efficient.) They're also inexpensive and the "glass" is frosted, which I find less harsh on the eyes. When it comes to brightness, they're not the brightest bulbs I've seen, but bright enough. I have another fixture with two 2ft LED bulbs that will burn purple bars in your eyes if you try to look at them. This is not the case here. They're as strong as a new T8 bulb of the same size. The color temperature is about 5000k. This is not the "supernova white" of 6000k or the "catacomb yellow" of the 2800-3000k. For indoor use, I prefer 4000k. 5000k is an excellent choice for garages and the kitchen where good color rendition could be useful. Shipping problems: Many people complain about shipping problems and broken lights on the review section for this product. In my case, the 20 bulbs came nicely packaged with foam protecting them all over. No broken bulbs. Shipping was also pretty fast. Flickering issues: So far, I have not observed any flickering issues. LED lights with poor voltage regulators (like the cheap ones you can buy at dollar stores) tend to do that. These (so far) shine steadily, with no problems. Long startup times: Here comes an interesting observation: Some people complained that the bulbs can take up to 0.5s to turn on. I direct wired one of my fixtures (removed the ballast) and left three of them with the ballast (see below why). The direct wired one shows the slight "delay" to turn on, while the one with the ballasts don't. This is interesting. I expected the opposite. Why didn't you direct wire everything? Direct wiring the fixture has the advantage of taking the ballast out of the way (and they do go bad), with the side advantage of making the fixture lighter in general. The operation itself is very simple but I had a ton of pain performing it on one of my fixtures. Some fixture manufacturers use some kind of wire that is basically *impossible* to strip properly. I tried three wire strippers and none of them would work. I ended up wasting a *lot* of time on this. Note that I'm very used to electrical work and never had a similar problem with regular wiring, but this is the second brand of fixture I observe the use of this type of wire. For that reason, I decided to leave the others with the ballast and deal with rewiring them if/when the ballast dies. Conclusion: So far, everything looks very good. I'll keep my fingers crossed and update this review as time goes.

Like: Works with some ballasts, can direct wire for ballasts that don't work (direct wiring also saves a watt or two over using with compatible ballasts). Lights are bright and sunlight-colored (cool white, not warm) light. Work fantastic in my garage and shop. Dislike: Packaging is marginal for shipping glass tubes with fragile ends. Many lights damaged in shipping. They DID replace damaged lights with no fuss. Check all lights, especially ends, when received.

This is a great LED replacement light for the common 4' fluorescent tube lights.... but... There are plenty more that will work with darn near any ballast, just "plug-n-play" replace your old fluorescent tubes! This one works with very few ballasts. I tried with about 10 different sets of shop lights, kitchen lights, closet lights, etc. It did not work with ANY of the light fixtures I tried! There ARE plenty of other (more expensive, I'll admit) LED replacement 4' tubes that WILL work with darn near any ballast. All that said.... these lights are a very good price for 20 of them (you know you will eventually have to replace all the old fluorescent tubes in your house!). And.. eventually, with a little WORK, they WILL WORK for you! 1. You will HAVE TO CUT the main line wires ("Line" and "Neutral" ) that go to your existing ballast. 2. You will HAVE TO CUT the many wires that go from your existing ballast to both ends of your flouorescent tubes. 3. Now... you will need to connect your incoming "L & N" (Line and neutral) wires directly to the two end 'tombstones' (the things your tubes plug into at the ends of the fixture), so that the new LED tubes with "L & N" will connect to the same incoming wires!. Be careful! Looking into those 'tombstones on the left end of the fixture, you'll need the Line on the left and the Neutral on the right of each tombstone connector. That means, your new LED tubes will now run directly on 120 volts input from your house! And ... NOTHING will be connected to the other end of each tube, because you will CUT all the wires from the old ballast to that end! 4. These are "T8" size, which I think is 1' diameter. Our old traditional fluorescent tubes are "T12", 1 1/2" diameter. Don't worry, they BOTH have a G13 size connection on both ends! The little prongs on each end of either T12 or T8 are both the same! Interchangeable! 5. If you can find T12/T8 LED tubes on Amazon or elsewhere with G13 connectors on the ends, they WILL work with your existing shop lights and other fixtures.... but you MAY have to rewire ('by-pass' the ballast as they say) to make them work. To my surprise these LED tube lights will work directly on 120 volts connected directly into their "L & N" (line and neutral) inputs on only ONE END! The other end gets nothing! and yet.... they light up just as nice and bright! Be aware, these LEDs put out a kind of blue/white light, (Daylight), not what you old kitchen lights might put out (kinda 'yellow'?? -- they call 'soft light' in the old days!). All that said: For the price --- amazing! you'll probably need 20 of them sometime in your life, and my bet is that these will be the very LAST time you will EVER replace an old fluorescent tube! (They last 50,000 hours!) And... they WILL WORK in darn near any fixture --- but you may (and probably WILL) have to change/ rewire the power to them.... I.e, you'll need to cut out the ballast wires to connect 120V input directly to the end of these tubes that are clearly labeled "L" and "N". Good luck!

I manage a 167 condominium complex and I'm always looking for ways to save money, improve living conditions and I came across a video about bypassing the ballast and I bought these bulbs to give it a try. I was quite amazed at how easy it is to change and remove the ballast and just run the electricity through the bulbs instead of the heat-generating, power-hungry ballast. I'm not sure of the savings on our electric bill yet as I just installed these and haven't gotten the electric bill. I plan on converting all 112 ballast fixtures with these bypass LED tubes. From what I've read and researched you can save up to 30% on your electric bill by eliminating the ballast and getting away from fluorescent-type tubes. A couple of years ago we switched from T12 to T8 tubes and I noticed a difference to the good on our electric bill. I'm hoping that this bypass LED will save us even more. What's really awesome is that these bulbs are less than $5 apiece. I was paying upwards of $10 for four-foot T8 bulbs. So, I'm saving money even before I flip the switch. Another nice feature about these bulbs is that you can still use them with a ballast in place. So, if you feel unsure about removing the ballast even after watching my video, you can save a boatload of money by just using these bulbs with your existing ballast. So whether you remove the ballast or not, these will be far brighter than a regular T8 or T12 Fluorescent tube and save money on the purchase as well.

Out of 20 bulbs 14 worked so 6 not functional out of the box. Not very bright at all and they are fickle to make work, you have to jostle them in the tombs repeatedly to get them to go on. Not at all happy with them. Furthermore, had these a short time and 2 have now stopped working so out of 20 i ended up with 12 working to date which is the exact amount i need so i will have to buy more bulbs if any others go out prematurely. Would not recommend these at all to anyone

UPDATE: Despite that the bulbs were damaged in shipping and not the sellers fault, after writing my review of these lights the seller contacted me and offered me a full refund on the lights even though I did not ask for one. Even though they were broken, I did manage to get most of them to work and they seem to work great, I didn’t consider the seller responsible for a refund. That is great customer service and I would definitely do business with this company again. The bulbs that I could get to work are bright and seem to do well. Most of them arrived broken where the box was dropped on one end and the plastic caps at the ends of the bulbs that house the “prongs” were all cracked. None the less I got them all to still operate except for one which was too broken to use. I’m very happy with them but I wish they weren’t broken.