Pennock's Fiero Forum
  Technical Discussion & Questions
  Upgrade to LED 3rd Brake light

Post New Topic  Post A Reply
Email This Page to Someone! | Printable Version


next newest topic | next oldest topic
Upgrade to LED 3rd Brake light by fierosound
Started on: 08-19-2022 04:14 PM
Replies: 13 (466 views)
Last post by: str8maxn on 08-25-2022 11:37 AM
fierosound
Member
Posts: 15160
From: Calgary, Canada
Registered: Nov 1999


Feedback score: N/A
Leave feedback





Total ratings: 286
Rate this member

Report this Post08-19-2022 04:14 PM Click Here to See the Profile for fierosoundClick Here to visit fierosound's HomePageSend a Private Message to fierosoundEdit/Delete MessageReply w/QuoteDirect Link to This Post
For this upgrade, you want the 12V Red 42 LED panel - Dimensions: 127mm x 28mm
https://www.ebay.ca/itm/253816257643




It's almost a perfect fit, but 2 of the corners need to be filed down slightly. I used an angle grinder with worn out flap wheel.




This is what it looks like with a test fit once you get it right.




Then just solder +Power (Red) and -Ground (Green) wires to the appropriate connections on the panel.




Take the original brake light bulb and snip off the bulb itself. You want the socket.




Solder the +Power and -Ground wires from panel to appropriate leads in the socket - and test.
You can see what orientation I have, but check wiring diagram to make sure.




Last thing I did was add a dab of hot glue in each corner to secure the LED panel.




Installed and looks beautiful. It matches the LED light panels I installed in the GT tail lights. It took less than 1 hour.


------------------
My World of Wheels Winners (Click on links below)

3.4L Supercharged 87 GT and Super Duty 4 Indy #163

[This message has been edited by fierosound (edited 08-20-2022).]

IP: Logged
PFF
System Bot
Spadesluck
Member
Posts: 2080
From: Georgia
Registered: Jul 2016


Feedback score:    (8)
Leave feedback

Rate this member

Report this Post08-19-2022 10:51 PM Click Here to See the Profile for SpadesluckSend a Private Message to SpadesluckEdit/Delete MessageReply w/QuoteDirect Link to This Post
Very Nice
IP: Logged
ArthurPeale
Member
Posts: 346
From: Brattleboro, VT, USA
Registered: Jul 2019


Feedback score: N/A
Leave feedback

Rate this member

Report this Post08-21-2022 10:08 PM Click Here to See the Profile for ArthurPealeSend a Private Message to ArthurPealeEdit/Delete MessageReply w/QuoteDirect Link to This Post
Does it have to be red? The lens is already red.
IP: Logged
fierosound
Member
Posts: 15160
From: Calgary, Canada
Registered: Nov 1999


Feedback score: N/A
Leave feedback





Total ratings: 286
Rate this member

Report this Post08-21-2022 10:20 PM Click Here to See the Profile for fierosoundClick Here to visit fierosound's HomePageSend a Private Message to fierosoundEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by ArthurPeale:

Does it have to be red? The lens is already red.



If you use white LEDs, the end result will look PINK...
IP: Logged
ArthurPeale
Member
Posts: 346
From: Brattleboro, VT, USA
Registered: Jul 2019


Feedback score: N/A
Leave feedback

Rate this member

Report this Post08-22-2022 02:40 AM Click Here to See the Profile for ArthurPealeSend a Private Message to ArthurPealeEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by fierosound:
If you use white LEDs, the end result will look PINK...


Weird. The original bulb doesn't show pink, why would that?

I did my corner lamps with white LEDs, 4000K, the red aren't pink. Is it because of the spectrum of these specific ones?
IP: Logged
ArthurPeale
Member
Posts: 346
From: Brattleboro, VT, USA
Registered: Jul 2019


Feedback score: N/A
Leave feedback

Rate this member

Report this Post08-22-2022 02:48 AM Click Here to See the Profile for ArthurPealeSend a Private Message to ArthurPealeEdit/Delete MessageReply w/QuoteDirect Link to This Post

ArthurPeale

346 posts
Member since Jul 2019
Wow, whowoulda thunk? Never given it any thought until now

https://www.autobulbsdirect...b-behind-a-red-lens/
IP: Logged
J Gunsett
Member
Posts: 1361
From: KY
Registered: Apr 2003


Feedback score: (2)
Leave feedback





Total ratings: 50
Rate this member

Report this Post08-22-2022 08:55 AM Click Here to See the Profile for J GunsettClick Here to visit J Gunsett's HomePageSend a Private Message to J GunsettEdit/Delete MessageReply w/QuoteDirect Link to This Post
Arthur, great video find.
IP: Logged
theogre
Member
Posts: 32401
From: USA
Registered: Mar 99


Feedback score: N/A
Leave feedback





Total ratings: 568
Rate this member

Report this Post08-22-2022 02:34 PM Click Here to See the Profile for theogreClick Here to visit theogre's HomePageSend a Private Message to theogreEdit/Delete MessageReply w/QuoteDirect Link to This Post
US link https://www.ebay.com/itm/253816257643

While Illegal as other external lights, this is about the only thing to replace w/ LED in Fiero...
Because 889 bulb will cook the fixture and even the trim under it in areas w/ heavy traffic problems. LED could have similar heat problem but will get to it bit later...

I don't like the panel so close to the lens to see dots. Someone make/made an LED that drop in replace for 889 and other in same format but believe that replaces 50+ watt halogen and likely way too bright to replace 889 27w.

Result should be about same brightness as halogen 889 bulb they replace and no-one bothers to test this when finish.
A basic test is find any cheap light meter for cameras etc. then add/use a cut down box to limit extra light pollution and measure output thru the Lens and rear glass before and after to see if their close to same number.

IOW LED may look good in a garage, at night, but often fails in daylight even without direct sun light issues. Or Way too bright and blind drivers behind w/ taillights @ night.

Even ignore that... LED many work for some not other even if all install same way w/ same type for other reason not or barely covered in the cave or anywhere else. Highlights:
Heat they make, Heat when parked outside, and other heat problems.
LED don't like "Dirty" power in most cars either. Nothing to block power noise and surges killing most of the LED "upgrades."
Worse if LED are "over driven" to make more light... Could be the "wrong" choice of resistors etc to limit power. But Remember "12v" in cars is typically 14+v (15-20% more volts) when engine runs and that can over drive the LED too. More so when only have resistors to limit power.

------------------
Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
(Jurassic Park)


The Ogre's Fiero Cave

IP: Logged
theogre
Member
Posts: 32401
From: USA
Registered: Mar 99


Feedback score: N/A
Leave feedback





Total ratings: 568
Rate this member

Report this Post08-22-2022 02:41 PM Click Here to See the Profile for theogreClick Here to visit theogre's HomePageSend a Private Message to theogreEdit/Delete MessageReply w/QuoteDirect Link to This Post

theogre

32401 posts
Member since Mar 99
 
quote
Originally posted by ArthurPeale:
Wow, whowoulda thunk? Never given it any thought until now

https://www.autobulbsdirect...b-behind-a-red-lens/
This UK "company" looks like many "companies" in the US selling Illegal "upgrades" as in UK MOT will Fail an Inspection installing HID and other crap they sell. Unlike US States that have Poor or No Inspection, Every UK Vehicle must Pass a MOT Inspection and their rules are much stricter then here.

This "video" barely showing some of info covered in my Cave, LED poisoning posted ~ 20 years ago when the lens color doesn't LED light output.

Fiero High Brake Lens like fixtures in the video may match the Red Leds more the other old taillights. "White" LED are use Blue or UV LED to "run" a mix of phosphors to produce whatever "white" output cause problems like any Cool White often output Pink or close to that behind Red LEDs.

It ignores CANBUS LED and Ballast resistors often causes problems adding to heat problems in above post.
IP: Logged
fierosound
Member
Posts: 15160
From: Calgary, Canada
Registered: Nov 1999


Feedback score: N/A
Leave feedback





Total ratings: 286
Rate this member

Report this Post08-22-2022 11:32 PM Click Here to See the Profile for fierosoundClick Here to visit fierosound's HomePageSend a Private Message to fierosoundEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by theogre:

I don't like the panel so close to the lens to see dots. Someone make/made an LED that drop in replace for 889 and other in same format but believe that replaces 50+ watt halogen and likely way too bright to replace 889 27w.



There is a shorter 24 LED panel (80mm x 28mm) available that could be mounted further back in the housing, and so further away from the red lens.

[This message has been edited by fierosound (edited 08-22-2022).]

IP: Logged
css9450
Member
Posts: 5448
From: Glen Ellyn, Illinois, USA
Registered: Nov 2002


Feedback score: (2)
Leave feedback





Total ratings: 85
Rate this member

Report this Post08-23-2022 11:04 AM Click Here to See the Profile for css9450Send a Private Message to css9450Edit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by fierosound:

If you use white LEDs, the end result will look PINK...


+2

I have the one that Black Top Racing used to sell... It's pink. I like that it's nice and bright but the pinkness of it gives it away as kind of a hack job,

IP: Logged
PFF
System Bot
str8maxn
Member
Posts: 289
From: Fontana CA
Registered: Aug 2018


Feedback score: N/A
Leave feedback

Rate this member

Report this Post08-24-2022 02:31 PM Click Here to See the Profile for str8maxnSend a Private Message to str8maxnEdit/Delete MessageReply w/QuoteDirect Link to This Post
QQ- Can you add a 3rd brake light to an 85 that currently doesn't have one; will it bolt up?

------------------
JM

IP: Logged
theogre
Member
Posts: 32401
From: USA
Registered: Mar 99


Feedback score: N/A
Leave feedback





Total ratings: 568
Rate this member

Report this Post08-24-2022 04:25 PM Click Here to See the Profile for theogreClick Here to visit theogre's HomePageSend a Private Message to theogreEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by str8maxn:
QQ- Can you add a 3rd brake light to an 85 that currently doesn't have one; will it bolt up?
You could add one, OE or aftermarket, but car isn't wired etc for them.

Decades ago some sold a kit for 3rd Brake Light to fit most any car like below but now often have to make something to fit.

This came w/ a "module" to wire to the red taillight direct. Also the Lens is Marked as High Mount Brake to meet USDOT rules w/ DOT/SAE U84 CYCLOPS (U is High Brake, 84 year to meet FMVSS, Cyclops for ID who made. See Cave, Lighbulbs @ bottom)
Another version was sold w/o the module for cars w/ amber rear turn lights and was a bit cheaper. (Price is likely 80s to early 90s $ price.)

I found that in a flea market and spent nothing, keep just for showing was a real thing. Was open but only missing vampire taps for wires... (Found those & others parts inside the light fixture later.)

Sold a lot of them for installing in pre-86 cars.

If can't/won't use OE Fiero High Brake unit... Use some other High Brake and wire to brake pedal switch. Often they are LED or use 2 or more small bulbs that won't melt the fixture when stuck in heavy traffic.

E2A--> Cyclops uses 921 Bulb 12v 18w for any might have 1 of this in use. Format sim to 906 in cave lightbulbs.

[This message has been edited by theogre (edited 01-11-2024).]

IP: Logged
str8maxn
Member
Posts: 289
From: Fontana CA
Registered: Aug 2018


Feedback score: N/A
Leave feedback

Rate this member

Report this Post08-25-2022 11:37 AM Click Here to See the Profile for str8maxnSend a Private Message to str8maxnEdit/Delete MessageReply w/QuoteDirect Link to This Post
Thank you for reply....
IP: Logged

next newest topic | next oldest topic

All times are ET (US)

Post New Topic  Post A Reply
Hop to:

Contact Us | Back To Main Page

Advertizing on PFF | Fiero Parts Vendors
PFF Merchandise | Fiero Gallery | Ogre's Cave
Real-Time Chat | Fiero Related Auctions on eBay



Copyright (c) 1999, C. Pennock