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headlights: halogen to LED?

Discussion in 'Gen 2 Prius Accessories & Modifications' started by essaunders, Jan 3, 2018.

  1. essaunders

    essaunders Member

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    I have a 2007 Prius. I'm interested in any feedback anyone may have for the best LEDs for halogen replacements for the headlights. The base halogens (9003) aren't bright enough for my driving really, and 'brighter' options seem to fail excessively fast. So - LED seems like it might be an option -- if it's really brighter and lasts longer. Any recommendations?

    Thanks

    Erik
     
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  2. kens97uber171

    kens97uber171 Active Member

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    For LED I saw a great review on this brand that they tested inside of a Halogen housing.. great output and great control. But they cost $160.

    GTR Lighting Gen3 Ultra Series LED

    You might try DDM Tuning for a HID kit. I have bought several kits from them for various cars and had great success with them. Light control is pretty good.

    They use a style that move in and out not tilting and have a gate on the bottom and front for better light control in a Halogen housing.
    Base kit is about $60. Best they sell is about $95

    And they answer the phone if you call the retail stores in California and will answer technical questions.
     
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  3. Kevin_Denver

    Kevin_Denver Active Member

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    You shouldn't use a LED/HID replacement in the Prius' reflector housings. It's illegal to use anything other than H4/9003 halogen bulbs (HID Prius headlights excepted - available only on 08 and 09 IIRC). Pretty much all of the LED bulbs will put too much light output above the cutoff line on low beam, causing excessive glare for other drivers, which is dangerous. I personally hate it when I pass someone going the other direction with glaring headlights, so I'd never want to be one of those people. If you upgrade to projector headlights, you could probably install LED replacements, as projectors have a sharp cutoff (Cost of these is ~$350/pair on the 2nd gen), but reflector housings glare too much light where it isn't intended.

    If you want the best lighting from your headlights:
    1. Remove the corrosion and yellowing from your headlights to have clear lenses. There are many tutorials on this on youtube, or a good place to have it done is Costco, which will do it for $40 with a lifetime warranty, IIRC. Every time you wash your car, you should wax your headlights.
    2. Aim your headlights properly. There are many youtube tutorials on this. Most common on old cars is for the headlights to droop, so they need to be adjusted up after about a decade.
    3. Use higher output 9003/H4 bulbs - Philips Extreme Vision, Osram Night Breaker, etc. Note that older halogen bulbs often smoke up the bulb, so new bulbs may yield some brightness increase even without going to a higher output bulb.

    So many people with problems with #1 and #2 above and think they need brighter bulbs. Get your lenses clear and headlights properly aimed and see where you're at.
     
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  4. Longinus876

    Longinus876 Junior Member

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    That's not the number on my halogen headlights and they're the originals. Mine are H4/60020. The driver's side is not behaving. Is that a double throw double pole relay. Is it possible that the relay is not throwing the driver's bulb and just the passengers?
     
  5. Kevin_Denver

    Kevin_Denver Active Member

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    I don't know why they would have "6002" on them. 60020 might be a part or serial number. Is this on the headlight assembly (and not the bulb)? The 9003/H4 bulb design is very standard and one of the oldest bulb designs out there. IIRC 9003 was the design for cars, and H4 for motorcycles, and technically there are some small differences in the specs. At this point they're interchangeable, as the bulb manufacturers only make bulbs that are compatible with both.
     
  6. The Phoenix

    The Phoenix Member

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    I have switched out my halogens for a four sided LED, and I have noticed some issues but they don't seem unusually high, I have adjusted them and the only bad thing is I'm using aftermarket headlight assemblies which seems to make the adjustment a bit more of a challenge, I do notice they are brighter and work well, for my taste
     
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  7. SFO

    SFO Senior Member

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    Product link for the rest of us?

    Any before or after photos you care to share?
     
  8. The Phoenix

    The Phoenix Member

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    I didn't think to take any before pictures but I just took one tonight when I was taking pics of the LED's I installed 20180126_225808.jpg 20180126_225744.jpg 20180126_225635.jpg
     
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  9. valde3

    valde3 Senior Member

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    Is that last picture taking with just low beam lights? Looks like they are pointing way too high. Or maybe the picture is somehow misleading? There should be a clear cut of line visible with low beam lights.
     
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  10. Lucifer

    Lucifer Senior Member

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  11. Kevin_Denver

    Kevin_Denver Active Member

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    Only problem is that 80/100W bulbs may melt headlight housings. The housings were intended for 55/60W bulbs. Certainly I've seen on other forums for other cars people reporting melting their housings with high wattage bulbs. Probably okay in the winter, but I'd pay very close attention in the summer.
     
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  12. The Phoenix

    The Phoenix Member

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    Yes those are low beam and I'm still trying to lower them more and I might change the orientation of where the LED panels are in the housing, but in the winter it's a bit harder, but no police problems yet and I do drive quite a bit
     
  13. padroo

    padroo Senior Member

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    Have you had anyone flash their high beams at you. If they do they are too high.
     
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  14. The Phoenix

    The Phoenix Member

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    Not often but once or twice I really need to get my hand down there and crank them down a bit more, I destroyed the dust covers with the install of the LEDs and when I upgraded to brighter halogens they were burning out all the time so I need to make the LEDs work right
     
  15. lex

    lex 2005 Prius, always garaged

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    Unfortunately just went through a switch to LED in the 2005, after attempting to find such guidance here on improving illumination. Returning to the forum to see what others have found at this point in terms of a preferable replacement halogen bulb - perhaps Hellas, Osram, or Phillips, but please do name a specific model if you're aware. Thanks in advance.