RC - 1st Gen (2015-present) Discussion about the new Lexus RC model

LED turn signal swap

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Old 05-18-17, 11:33 AM
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and3re
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Default LED turn signal swap

Has anyone changed that orange front turn signal bulb into an LED turn signal?

I know the front is a 7444 bulb. But switching to a LED you'd need a resistor?

I hate Splicing the wires and making it look messy,

Is there an ALL WHITE LED you've used that had a resistor already attached?

I've seen them for the rear ( but different bulb size. The rear is a 7440).
Old 05-23-17, 05:49 AM
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sarcoptic
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I originally bought 2x pairs of these for my RC:

https://www.amazon.com/iJDMTOY-Resistor-7440-W21W-Bulbs/dp/B071VTS4WS/ref=sr_1_14?ie=UTF8&qid=1495543492&sr=8-14&keywords=ijdmtoy+no+resistor+required https://www.amazon.com/iJDMTOY-Resistor-7440-W21W-Bulbs/dp/B071VTS4WS/ref=sr_1_14?ie=UTF8&qid=1495543492&sr=8-14&keywords=ijdmtoy+no+resistor+required

Found out the car only seems happy with only one pair installed. I ended up leaving the fronts and put the backs back to factory. If you had both sets installed the car would still hyper blink. I am with you in I don't want to splice any wires into the system. The taillights would definitely be easiest to add resistors if you go down the splicing route...working on the fronts is a pain in the *** and another reason I left those after I had them installed.
Old 05-23-17, 07:42 AM
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dchar
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Originally Posted by sarcoptic
I originally bought 2x pairs of these for my RC:

https://www.amazon.com/iJDMTOY-Resis...istor+required

Found out the car only seems happy with only one pair installed. I ended up leaving the fronts and put the backs back to factory. If you had both sets installed the car would still hyper blink. I am with you in I don't want to splice any wires into the system. The taillights would definitely be easiest to add resistors if you go down the splicing route...working on the fronts is a pain in the *** and another reason I left those after I had them installed.
I wonder if you used the one posted for the front and this one (decoder box) in the rear
https://www.amazon.com/gp/aw/d/B00MJ7S1T4/ref=mp_s_a_1_4?ie=UTF8&qid=1495550395&sr=8-4&pi=AC_SX236_SY340_QL65&keywords=resistor+free+turn+signal&dpPl=1&dpID=51O%2BsOqJzGL&ref=plSrch https://www.amazon.com/gp/aw/d/B00MJ7S1T4/ref=mp_s_a_1_4?ie=UTF8&qid=1495550395&sr=8-4&pi=AC_SX236_SY340_QL65&keywords=resistor+free+turn+signal&dpPl=1&dpID=51O%2BsOqJzGL&ref=plSrch
maybe this will fix the hyperflash problem?
Old 05-23-17, 09:06 AM
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sarcoptic
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Yep sounds like resistors will solve the problem...the IS peeps solved the same problem:
https://www.clublexus.com/forums/is-...s-for-3is.html
Old 05-23-17, 01:54 PM
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Diode Dynamics
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You will need resistors to prevent hyperflash, or a replacement LED module like this one:

Nick C.
Old 05-23-17, 03:46 PM
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and3re
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Originally Posted by sarcoptic
I originally bought 2x pairs of these for my RC:

https://www.amazon.com/iJDMTOY-Resis...istor+required

Found out the car only seems happy with only one pair installed. I ended up leaving the fronts and put the backs back to factory. If you had both sets installed the car would still hyper blink. I am with you in I don't want to splice any wires into the system. The taillights would definitely be easiest to add resistors if you go down the splicing route...working on the fronts is a pain in the *** and another reason I left those after I had them installed.

I thought the fronts were 7444 na

Splicing is still a no no for me. So are they saying we can just out relays in the back and you won't need to *** them in the front?

Look what i was able to find. This seems like the cleanest way to install. Has anyone got anything like this? Splicing not needed

KaTur 2pcs 50W 8ohm 7443 7444NA Led Load Resistors - Fix LED Bulb Fast Hyper Flash for LED Turn Signal Light Blink or LED License Plate Lights Error https://www.amazon.ca/dp/B06XW8Z59X/ref=cm_sw_r_wa_apa_VMljzbQ5HH5BV
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Old 05-24-17, 05:00 AM
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sarcoptic
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The amazon link I posted the first time will work for both front and rear turn signals. However you can only have one pair in before hyperflashing (either front or rear). So you could buy one pair and put them in the front and they work just fine (currently how my car is setup). I went ahead and bought another pair and resistors to splice in for the rears as its been confirmed that will allow you to have both front and rear done. There is a lot more room to work on the rear tail lights so I am going to splice in the resistors there.

You should be able to do something like you linked however there is like zero wiggle room when working on the front turn signals. In fact the fronts have a little paddle you actually untwist/twist....without that paddle you better have small *** hands to get that adapter you linked set in and locked into place.
Old 05-24-17, 05:11 PM
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jowsleyyy
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I used the v3 tritons on my front and rear turn signals.They have resistors in them, but I wouldn't let that stop you. The bulbs are amazing.
Old 05-24-17, 05:16 PM
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rcJten
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Originally Posted by jowsleyyy
I used the v3 tritons on my front and rear turn signals.They have resistors in them, but I wouldn't let that stop you. The bulbs are amazing.
I second this, the V3 Tritons are awesome. I originally had resistor free LED signals in my front headlights. They worked well, except when I tried to put another pair in the rear, then I got hyperflash all the way around.

No resistor bulbs (now in the GF's tailights):
http://store.ijdmtoy.com/No-Resistor...s-p/20-025.htm
Old 05-24-17, 06:21 PM
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Originally Posted by jowsleyyy
I used the v3 tritons on my front and rear turn signals.They have resistors in them, but I wouldn't let that stop you. The bulbs are amazing.
Originally Posted by rcJten
I second this, the V3 Tritons are awesome. I originally had resistor free LED signals in my front headlights. They worked well, except when I tried to put another pair in the rear, then I got hyperflash all the way around.

No resistor bulbs (now in the GF's tailights):
http://store.ijdmtoy.com/No-Resistor...s-p/20-025.htm

Awesome thanks.

I think I'll be ordering these ones. Plug + play is the way to go, hope fully they ship to Canada
Old 05-25-17, 05:57 AM
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Originally Posted by and3re
Awesome thanks.

I think I'll be ordering these ones. Plug + play is the way to go, hope fully they ship to Canada
If you are in Canada, I suggest reaching out to ProLightz. They are a lighting installer / retailer in Canada. Might have what you are looking for in stock!

Nick C.
Old 05-26-17, 07:03 PM
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and3re
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Originally Posted by Diode Dynamics
If you are in Canada, I suggest reaching out to ProLightz. They are a lighting installer / retailer in Canada. Might have what you are looking for in stock!

Nick C.
Thanks, ill take a look
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Old 05-26-17, 08:27 PM
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and3re
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[QUOTE=sarcoptic;9875632]I originally bought 2x pairs of these for my RC:

https://www.amazon.com/iJDMTOY-Resistor-7440-W21W-Bulbs/dp/B071VTS4WS/ref=sr_1_14?ie=UTF8&qid=1495543492&sr=8-14&keywords=ijdmtoy+no+resistor+required https://www.amazon.com/iJDMTOY-Resistor-7440-W21W-Bulbs/dp/B071VTS4WS/ref=sr_1_14?ie=UTF8&qid=1495543492&sr=8-14&keywords=ijdmtoy+no+resistor+required


Well I ended up going with these

http://store.ijdmtoy.com/Error-Free-CREE-High-Power-7440-LED-Bulbs-p/20-009.htm

They had a photo that just convinced me to try them out

Hopefully they work in the front WITHOUT adding another resistor or else I'm gonna have to make some magic happen



I didn't want yellow. Just 5k white light. You are able to get red, yellow, and white I believe.
Old 05-27-17, 11:48 AM
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I used something similar (from the same place, I think) to replace my backup lights. Those lights were too dim, and the warning with the lights says not to use them for any other purpose, because they get too hot. I'm not surprised, as the new ones are extremely bright. My guess is that these are the same thing. Frankly, the amber for a turn signal is fine with me, and I believe that turn signals are now amber (maybe by Fed regulation) because that actually makes them easier for oncoming drivers to see than the white lights, and for that reason, I am sticking with the stock front turn signals.
Old 05-27-17, 12:11 PM
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Originally Posted by tfischer
I used something similar (from the same place, I think) to replace my backup lights. Those lights were too dim, and the warning with the lights says not to use them for any other purpose, because they get too hot. I'm not surprised, as the new ones are extremely bright. My guess is that these are the same thing. Frankly, the amber for a turn signal is fine with me, and I believe that turn signals are now amber (maybe by Fed regulation) because that actually makes them easier for oncoming drivers to see than the white lights, and for that reason, I am sticking with the stock front turn signals.

Ya good point. Using lights like this for back up lights would possibly get too hot because depending on how long you plan on reversing, the longer the light stays on, where-as turning, the light just blinks and resets for a shorter time period.
Because Remember, these have resistors already installed on them to bump up power.
the backup lights I already have are just the LED itself so it shouldn't get as hot.

The brightness is supposed to be twice the visual of stock amber.

I'll know once I insert them unless someone else has already had them installed.


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