Kihung T8 LED Light Tube 8ft 36W (90W Equivalent) 4300Lm Brightness 6500K Cool Daylight White, Clear PC Cover & Aviation Aluminum, Pack of 4

At $30 a piece these bulbs are a no-brainer. A ballast costs this much plus the cost of the bulbs which run $5-10 each. Additionally, since there is no ballast, all the energy lost by the ballast conversion is no longer lost. This is super easy to convert. Remove the old ballast. Connect your incoming white wire to all of the wires one one end. Connect the incoming black wire to all the wires on the other end. Install the new LED bulb in place of the old florescent bulb and you have light. The only negative is that these new bulbs, being made out of plastic, bow in the middle. Make sure the bulb doesn't fall out by putting a 1 inch piece of double sided foam between the back side of the bulb and the lighting fixture right in the middle of the fixture.

3 bulbs worked fine. Only half of the 4th bulb worked. Contacted kihungtech@where ever the instructions said. This was over a week ago. So far nothing has been remedied by either Kihungtech@?? or by Amazon. I am fine with either a new bulb or a credit for one bulb. That should not be asking too much??

Really like 4.5 stars...I really like them now that they are installed, but there is a slight design flaw, in my experience with these. I have attached a photo comparing the pins of the original fluorescent tube, one of these LED ones as they come out of the box, and a pin that I've modified. The original fluorescent tubes have a rounded pin so they will easily spread the contacts apart and allow the pin to seat into the fixture. These tubes come with the pins pretty much squared off. This causes the problem of not being able to get that pin into the fixed single pin base. This is not a problem with the spring loaded fixture on the other end. So, I took a Dremel tool with a sanding drum and put a little 45 degree chamfer onto one pin of each tube. That spreads the contacts and now I am able to get those pins seated into their fixture.I too, had to drill a hole on either side of the tubes at the mid point and feed a plastic zip tie around them to hold the tube from sagging. They could do better than that with the aluminum extrusion but that would cost more money.So, if they are listening, they need to redesign the ends of the pins. If you make them bull nosed like the original fluorescents - then problem solved.

bad product

I used these to replace 8' florescent tubes. Disconnecting and rewiring the ballast was easy and the LED tubes perfectly fit the existing receptacle. I did place a small support wire in the middle of the fixture to help avoid the sag that others have mentioned about these tubes. I'm very pleased with the increased and whiter light output. I'd certainly purchase again if needed.

Oh boy. These ROCK. Husband refitted these in old style florescent fixtures. He reports not too hard - but you do need to know a little bit about electrical work to bypass ballasts. Wow. What a fabulous difference. NO more flickering because the old bulbs were dying or the ballasts were bad. They are wicked bright (but not too bright) and come right on - no warm up. Great news is we will probably never need to touch them again for many years not to mention the savings on electric bill. These are a bit of an investment, but ultimately will save I think. Win Win Win. I am open to questions/comments and never hesitate to update my reviews if new info would seem useful.

Lights began failing within 6 months. Each bulb seems to contain 4 individual rows of LED lights. Rows began failing completely and remaining rows began blinking. Poorly built or very cheap components. Do not buy these cheap bulbs!One star for good shipping only!

Purchased as samples,they work great easy to install we our switching our whole shop over to LED'S