SPL Upgraded 60W 4x6 Inch LED Headlights with DRL for H4651 H4652 H4656 H4666 H6545 Freightliner Kenworth Peterbilt International Volvo Sterling Western Star Mack(Chrome 4Pcs)

Got these just for the DRL feature for night work where you can't really have your headlights on (you'll be blinding/annoying the driver in front of you). They give you just enough to see what's directly in front of you. The low beams are decent but the high beams are laughably bright. I dare someone to flash their brights at me now, they'll regret it. Our mechanic did the install and he said it was pretty basic.

I installed these lights on a 94 Freightliner FLD120. The over all look of the lights are great. These are way better than stock, the high beams are great, the low beams are not as great compared to the high beams but they are better than stock lights. The low beam is somewhat cloudy looking on some surfaces and others it is great. The cutoff line is good haven't had anyone complain about them. The install was simple the lights came with a adapter harness. I pulled my factory headlights out, took a test light and checked to determine which wire operated low beam and high beam (on my truck the key had to be on to activate the high beams). After I determined the black was low beam, red was high beam and green was ground. I plug in the adapter according to the picture on Amazon because the lights didn't come with a wiring diagram (yellow low beam, red high beam, black ground). In the high beam headlight there are only two wires one for high beam and one for ground (on my truck the outside light was low and the inside lights are high). I removed the yellow wire from the adapter with a small pick because there was no need for it on the high beam side (see pictures). I taped the connections because the adapter pins stick out a little. After that you can wire your DLR I decided to splice a wire into the parking lights and use that for the DLR, you can power the DLR however you decide it's not important it is just for looks.

Super easy to install. New wire harnesses sent with the lights. Only took about 15 mins from start to finish. There ain’t directions, so jus plug in the new wire harness into the new led lights, then “mix n’ match” the other end of the light until u find the right way. I’m makin it sound harder than it really is. Believe me tho, it is really easy and they look awesome. And SUPER bright at night too!! I’ll update this if they ever get condensation or quit working or anything crazy like that. As long as this post ain’t been updated, that means the light are still working great and are still WELL worth the money!!

Although I received the lights today I have not gotten these lights installed yet and here is why. The way I read the description of the product on Amazon, H4 adapter cables were included with the purchase. I anticipated there would be a problem with just replacing my H4656 lights and wanted the adapter cables to aid with rewiring. I plugged the new LED light directly into my socket and it did not work. I have contacted the supplier to see if they were suppose to have sent the adapter cables or if the Amazon description is wrong.The LED lights fit into the RV's light housing just fine. That part seemed to be an exact fit.The pause gave me a chance to bench test the lights and to determine what wiring changes will have to be made. I found out that the ground and the high beam wires would need to be switched in order to make the new lights work. These are the 2 pins directly across from each other. I think anyone replacing an H4656 light will have exactly the same problem. I am not sure why the manufacturer does not change the lights wiring to make these lights plug-and-play compatible.As to how these lights work when installed, I will have to add that information to this review later. I will also add information on the sellers customer service as well.5/25/21- The manufacturer sent me an email stating the wiring adapters should have been included and gave me the option of a partial refund or they will send the cables. I opted to have them send the cables. Now we will see if they are going to do what they offered to do.

Seems to be great quality. Installed on a '91 Crown Vic to replace Sylvania Silver Stars. Low beams have a nice cut off line and brights are well aimed and stupid bright. Color is pretty clean; a slight blue tint but nowhere near obnoxious blue/purple. Overall, good price for a great product (assuming they last well.) Wiring harness had to be moved around a bit but nothing terribly complicated.Update: Phenomenal customer service!! Very quick to answer and they get you taken care of. After 18 months with these lights on a daily driver, I would purchase them again in a heartbeat. Very bright, great quality, no issues with fogging or condensation. The plastic lenses are less resistant to abrasion (obviously) but are thick enough to repel chip-seal/gravel better than the OEM glass sealed beams. My only suggestion for improvement would be to offer an option with an integrated heater in the lens. These are great lights and at $25 each, they are astronomically better than even the highest performance halogen sealed beams (which are $20+ and burn out in a few months based on my experience.)

These are super clear and bright at night. Easy installation. We keep an extra set in our truck, but they seem to last awhile.

*****I searched through many of the Amazon listings, this was a great choice. Well made lights, easy installation! Although not plug and play for my situation. With the included adapter, wiring was simple enough. Suggestion, if running quad headlights, we ran wiring to run all 4 on low beam. I have had NO negative responses when running all 4 on low beam. High beams are unbelievable. Previously ran factory halogens, and with running a semi truck on dark back roads, viability was very poor. These definitely light up the night sky! I just returned from a 3 week run.....questions/comments by many other truckers. They could not believe how bright and wide the projection of lights were. Great purchase for the money. Thank you SPL Lights :-)

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