Cheap Chinese bulbs. I bought some that cost over $100 (Morimoto) and they didn't fit because the base part that goes into the light housing was way to big.
You can try these Lasfit bulbs they're the best ones I've found so far. I haven't tested them as low beams, they may cause too much glare, but they do have a metal piece blocking some of the light to have a good cutoff. And they can be turned after locking into the fixture, I needed to do that on one of my aftermarket fixtures to aim it right.
LASFIT 9005 HB3 LED Bulbs 60W 6000LM Super Bright, 2022 Upgrade 9005 LED Conversion Kits, 6000K Cool White 360 Adjustable Beam, 50000+ Hour Lifespan, IP67, Plug and Play (2 Bulbs) https://www.amazon.com/dp/B081BDS6RC/ref=cm_sw_r_cp_api_i_QX43VK62SSP50V094F3J
I saw that post and I ordered the bulbs linked to by OP but didn't run into the issue that one forum user did. I had zero problems. Maybe Amazon sent them the wrong product. Again, here's the product I installed: https://www.amazon.com/gp/product/B081BDS6RC/
I have a LX. I bought these on Amazon.
https://www.amazon.com/dp/B081BDS6RC?ref=ppx_pop_mob_ap_share
I just bought these new LED daytime running bulbs for my LS, the brand is called Lasfit, I've used this brand on all my cars in which they carry nearly every bulb you'll need. When installing these it does have the flicker error but this company carries a decoder that fixes it. Here's the links.
DRL LED's: https://www.amazon.com/dp/B081BDS6RC?psc=1&ref=ppx_yo2ov_dt_b_product_details
DRL Flicker Decoder: https://www.lasfit.com/collections/canbus-resistor-decoder/products/lasfit-2x-9006-9005-led-headlight-kit-canbus-resistor-anti-flicker-canceller-capacitor
Upgrade to LED headlights. Super quick and easy install, these are the lights: https://www.amazon.com/dp/B081BDS6RC/ref=cm_sw_r_cp_apa_glt_fabc_ZY8J95SDHP8RDBYCKRJ2?_encoding=UTF8&psc=1
YouTube video breaks down the install.
Nice I have the same JDM style sidemarkers on my FK7 Sport (CA plate).
I went with a LASFIT setup all around (heads, tails, turn signals, side markers, reverse). They are anti-hyperflash, meaning you won’t have to install load resistors. Just make sure to orient the sockets and plugs in the correct direction and they should work fine.
While we’re at it, here are ALL the corresponding bulb sizes that will be compatible to each socket. You can also find the corresponding codes in your owner’s manual.
HIGHBEAMS: https://www.amazon.com/dp/B081BDS6RC?ref=ppx_pop_mob_ap_share
LOWBEAMS: https://www.amazon.com/dp/B075JH34S6/ref=cm_sw_r_cp_api_glt_fabc_39HP9T155XH3FQHH0YRF
FOGS: https://www.amazon.com/dp/B01N67FMQ5/ref=cm_sw_r_cp_api_glt_fabc_BFA15MW8V6VQ3M447CW5
I went with yellow 3000k ALLA since LASFIT only offers switchback
TURN SIGNALS (Front/Rear): [Requires TWO per order] https://www.amazon.com/dp/B08295KCM9?ref=ppx_pop_mob_ap_share
SIDE MARKERS: https://www.amazon.com/dp/B07B9WHXVY/ref=cm_sw_r_cp_api_glt_fabc_44Z4AF2P7B7XMQDG3WB5?_encoding=UTF8&psc=1
REVERSE: https://www.amazon.com/dp/B081YL2Q2W?ref=ppx_pop_mob_ap_share
BRAKES: https://www.amazon.com/dp/B0825N2G39?ref=ppx_pop_mob_ap_share
Absolutely. I only use my brights so people can see me turn them off.
I have these I haven't gotten around to installing as I never drive at night currently, they got good reviews on the forums:
https://www.amazon.com/gp/product/B081BDS6RC/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1
https://www.amazon.com/dp/B081BDS6RC?ref=ppx_pop_mob_ap_share
These are the ones I have in my 2017 SEL. They should fit your model but make sure you check first
https://www.amazon.com/dp/B081BDS6RC?ref=ppx_pop_mob_ap_share
These are the ones i got. Easy at home instalation, great illumination
These LasFit bulbs are the ones I purchased for my car. 2017 Elantra SEL. For the low beams