T FULGOR H3 Super Bright LED Headlight Bulbs Conversion Kit, Cool White light with Eight LED chips, Purple copper braid, 40w, 11,000lm, 6000K, one year, 1 pair (H3)

I am so very very disappointed in this product. I have a 2010 Tahoe to which the filter said it would fit my vehicle. If you know anything about Tahoes, you know that changing a bulb is very difficult. Almost the entire grill bumper assembly has to be removed to change a bulb.I tore everything apart only to be disappointed to find that the bulb does not fit in the housing. The three tabs on the locking mechanism are too large for the headlight housing. IT DOES NOT FIT!!!!

Unfortunately one of them stoped working today. It was just two and a half months since I installed these bulbs and can't return them because the returning window is closed.I tried to contact T Fulgor but there is no website so I will try with Amazon CS.

These headlight bulbs are nice IF they fully fit behind your headlight, the cooling fins are large and need about 3” behind to work properly. I had to return mine because I couldn’t get them to fit behind the headlight they are however very bright in the housing compared to halogen I would recommend them if you know you have enough room to make them work. 2.5 stars if I could but I wasn’t satisfied since they diddnt work partly my fault.

Here's what happened on the initial install and test:Left Headlight - Low beam looks good. High beam flickered intermittently.Right Headlight - Low beam only one LED array (upper on spindle) works, the other is dark. High beam both LED arrays are dark.I contacted the seller to see if they could help -- two emails back-and-forth, no instructions from them on what I could do to remedy, other than blaming the problem on a "voltage issue" with my vehicle. They did ask me to change my review however, as it was "harmful" to them.The next day I tested all the connections it turned out that the blue socket that connects the bulb to the vehicle's power line was faulty -- on both of the bulbs. The pins and wires were not seating correctly. I corrected the issue, reseating all connections and using a zip-tie to firmly hold the socket to my vehicles supply plug. And it worked -- both the flickering and the dark LEDs were fixed.Then I encountered two additional problems. The first was that the LED spindle "adjustment" was actually resulting in the spindle falling out of the back of the bulb assembly on one side of the vehicle. This is a "keyed" connection, so if you turn it all the way in one direction, it is supposed to stay put. On one side, this worked. On the other side, it did not, so I used a dab of silicon caulk on the back of the assembly where the turning part meets the retainer ring of my headlight. This seems to have stopped the jiggling -- but of course I can't adjust the beam without breaking that seal.Lastly it is important to take care that the heat syncs on the back of the bulb remain clear of exposed wire or plastic parts inside the engine compartment, as they get hot enough to melt through thin plastic.CONCLUSION: ***This product is not ready for mass consumption yet *** -- the build quality and loose connections on both bulb assemblies are much too risky to rely upon without a lot of extra work and correction. These bulbs are certainly not worth the premium price being asked for them.I will be taking the 4x4 in which these bulbs were installed for a test drive this weekend to see if these bulbs can withstand some light off-roading. I imagine that everything I did to get these bulbs to work will be undone with that much vibration...but hey, it's worth a try! I'll report back here with the results.FINAL UPDATE: I took a short drive with these for the first time tonight after dark. Wow, what a let down. Barely as bright as my stock bulbs and no throw at all on high-beam. So I'm returning them. No need to off-road test them, as they won't illuminate my path sufficiently.

To dim

Working good

Works as designed

Super bright. Night and day difference versus halogen bulbs.