LED Headlight Comparison: Holley Retro Bright vs. KC Highlights Gravity Projector

MikekiM

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Okay, I know there are tons of 7” headlight options for less than these, but this is “my thing.” I’m really into good lighting—it’s like a little treat for me.

A few years ago, after trying out lots of Amazon Special 7” LEDs, I decided to go with the Holly Retro Bright LEDs. I was so impressed by the positive reviews, the temperature I like, and how they looked. I’ve been using them for years, and honestly, I can’t find a good reason to replace them, except maybe because I’m bored… this was a scratch I needed to itch.

Since switching the Hella FF500 bumper-mounted fogs for the super bright KC Highlights Gravity 6” driving lights, I’ve been wanting to try the matching headlights. Finally, I took the plunge. Now that my wallet is a little lighter, I’ve decided to stick with the Holleys and return the KC’s.

Performance: I don’t see a huge difference in performance advantage. Honestly, I don’t think there’s any measurable advantage. I don’t like the pattern, either. There are hot spots all over the place. They’re brighter than the Holleys, but brightness isn't the end-all. If there’s any advantage, they might light up the pavement a little closer to the front of the Jeep, while the Holleys have a noticeable dead spot for the first 15-20 feet in front. Headlight Revolution did a shootout of the top 7” LEDs, and the KCs were rated lower than the Holleys, and now I agree.

Appearance: While they match the bumper-mounted driving lights, I really like the original, period-correct look of the Holley Retro Brights. They don’t look like LEDs until yturn them on. The KCs look cool and techy, but the Holley lens’s stealthy, original look is more cool.

Build quality: I think I already scratched the driver’s side lens on the KC. If I were going to keep them, I would add the Lamin-X, like I did with the Holleys and the KC driving lights. But, to be honest, the KC lens feels thinner, oddly cheaper, and more delicate than the Holley lenses. Plus, they were a pain to get seated in the buckets.

Longevity and serviceability: The Holley’s bulbs are easy to replace if they burn out, or if I’m feeling adventurous and want to switch colors (though I doubt I’ll ever do that). The KC bulbs, on the other hand, are sealed and can’t be serviced.

The Holley Retro Brights aren’t exactly a steal, coming in around $400 USD ($300 cheaper than the KC’s). In the end, I don’t think the KC’s $700 price tag is justified by their advantages. So, they’re boxed and heading back.

Carry on.
 
I have Holly's, I love them
PXL_20230318_190740950.webp
 
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I have the KC gravity G4 fog lights on the bumper of my TJ paired with Gravity PRO 7" headlights. The G4's I found to be one of the best fog lamps such that I've been trying to find ways to mount a set in my D.D. Their output projects an even pattern out very far. The lighting bleeds a bit upwards enough that you could comfortably drive around with these without headlights. The Gravity Pro's are an amazing light. However, I wouldn't pay $800+ for them if being used in a TJ/LJ. I scored these, 2nd hand. While they fit in the bezels, the lamp is much larger. The cooling fan (at the rear of the lamp) barely fits in the headlamp bucket opening and the lens is much thicker than most. Their output is very similar to the video. Crisp, with even light distribution. However, some might argue their design contradicts the classic Jeep look.

5f13eac0-e222-45f4-94bd-77bf17adc2f8_resized.webp
 
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Nice, now I wanna go with the KC's when I replace my headlights, it'd be nice to match them all.
I have the Amazon Truck lights LED knockoffs on mine, but they've actually have held up well.
View attachment 688700
I had those. They were the second set of LEDs I had. First set were click bait the PO installed and didn't qualify as "headlights". The Amazon TruckLite knock off replaced them and I kept them for only a few weeks. There was no pattern to talk about, other than the light thrown directly above the jeep lighting the underside of the overhanging trees.

I haven't returned the KCs yet. If you want them I'm sure I can cancel the return.. I think I paid $649.

I have the KC gravity G4 fog lights on the bumper of my TJ paired with Gravity PRO 7" headlights. The G4's I found to be one of the best fog lamps such that I've been trying to find ways to mount a set in my D.D. Their output projects an even pattern out very far. The lighting bleeds a bit upwards enough that you could comfortably drive around with these without headlights. The Gravity Pro's are an amazing light. However, I wouldn't pay $800+ for them if being used in a TJ/LJ. I scored these, 2nd hand. While they fit in the bezels, the lamp is much larger. The cooling fan (at the rear of the lamp) barely fits in the headlamp bucket opening and the lens is much thicker than most. Their output is very similar to the video. Crisp, with even light distribution. However, some might argue their design contradicts the classic Jeep look.

View attachment 688752
I really like the KC Daylighter LED driving lights. Bought them a year or two ago from @Chris. That's what got my hopes for the headlights. Can't lie.. After hemming and hawing for months and finally pulling the trigger I am disappointed they didn't work for me. I knew it was going to be hard to beat the Holley's also knew that if I didn't try I would always wonder "what if"
 
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I had those. They were the second set of LEDs I had. First set were click bait the PO installed and didn't qualify as "headlights". The Amazon TruckLite knock off replaced them and I kept them for only a few weeks. There was no pattern to talk about, other than the light thrown directly above the jeep lighting the underside of the overhanging trees.

I haven't returned the KCs yet. If you want them I'm sure I can cancel the return.. I think I paid $649.


I really like the KC Daylighter LED driving lights. Bought them a year or two ago from @Chris. That's what got my hopes for the headlights. Can't lie.. After hemming and hawing for months and finally pulling the trigger I am disappointed they didn't work for me. I knew it was going to be hard to beat the Holley's also knew that if I didn't try I would always wonder "what if"
Appreciate that, but mine are still going strong and they actually have a well defined cut-off line too, hmm?
Different manufacturers I'm sure, but I put them on probably 6-7 years ago too and the plastic lenses haven't even yellowed.
 
Curious if anyone has a comparison between the Holley Retro Brights and the new Summit LED headlights?
 
Okay, I know there are tons of 7” headlight options for less than these, but this is “my thing.” I’m really into good lighting—it’s like a little treat for me.

A few years ago, after trying out lots of Amazon Special 7” LEDs, I decided to go with the Holly Retro Bright LEDs. I was so impressed by the positive reviews, the temperature I like, and how they looked. I’ve been using them for years, and honestly, I can’t find a good reason to replace them, except maybe because I’m bored… this was a scratch I needed to itch.

Since switching the Hella FF500 bumper-mounted fogs for the super bright KC Highlights Gravity 6” driving lights, I’ve been wanting to try the matching headlights. Finally, I took the plunge. Now that my wallet is a little lighter, I’ve decided to stick with the Holleys and return the KC’s.

Performance: I don’t see a huge difference in performance advantage. Honestly, I don’t think there’s any measurable advantage. I don’t like the pattern, either. There are hot spots all over the place. They’re brighter than the Holleys, but brightness isn't the end-all. If there’s any advantage, they might light up the pavement a little closer to the front of the Jeep, while the Holleys have a noticeable dead spot for the first 15-20 feet in front. Headlight Revolution did a shootout of the top 7” LEDs, and the KCs were rated lower than the Holleys, and now I agree.

Appearance: While they match the bumper-mounted driving lights, I really like the original, period-correct look of the Holley Retro Brights. They don’t look like LEDs until yturn them on. The KCs look cool and techy, but the Holley lens’s stealthy, original look is more cool.

Build quality: I think I already scratched the driver’s side lens on the KC. If I were going to keep them, I would add the Lamin-X, like I did with the Holleys and the KC driving lights. But, to be honest, the KC lens feels thinner, oddly cheaper, and more delicate than the Holley lenses. Plus, they were a pain to get seated in the buckets.

Longevity and serviceability: The Holley’s bulbs are easy to replace if they burn out, or if I’m feeling adventurous and want to switch colors (though I doubt I’ll ever do that). The KC bulbs, on the other hand, are sealed and can’t be serviced.

The Holley Retro Brights aren’t exactly a steal, coming in around $400 USD ($300 cheaper than the KC’s). In the end, I don’t think the KC’s $700 price tag is justified by their advantages. So, they’re boxed and heading back.

Carry on.

That YouTube video was great, thanks for sharing. However, I wish they had reviewed Quadratec's Gen II LED Headlights. I've been eyeing them, as they are dramatically cheaper than the KC Gravitys.
 
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That YouTube video was great, thanks for sharing. However, I wish they had reviewed Quadratec's Gen II LED Headlights. I've been eyeing them, as they are dramatically cheaper than the KC Gravitys.

Rated "8th" or worse.. maybe..? They didn't make this review either...

The link I posted is of what Headlight Revolution rates as the "7 best"
 
RetroBrights are superior in every way possible compared to my previous TruckLites.
 
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