H7 LED fog lights

[ChrisA]

Has anyone used these and would I need to purchase the resistors for my CLS55?


2x H7 499 FRONT FOGLIGHT BULB XENON BRIGHT SMD LED 12V | eBay

 

[nigel cross]

Even the web site is not sure if resistors are needed, so I would say yes, purely a guess though.

 

[Howard]

You're aware that they will be useless if you actually encounter any fog ?

Or are you swapping them for 'the look'

 

[ChrisA]

Don't drive in fog so will convert to LED as DRL

 

[Sp!ke]

Without meaning to be rude, what are you hoping to achieve by fitting these?

[Edit] ok so for drl's I can understand...

 

[ChrisA]

I have the LED's as side lights and they make a huge difference
The fog lights are a dull yellow so hoping for brighter white to go with the rest. If possible use as DRL.

Question was "Has anyone used these and would I need to purchase the resistors for my CLS55?"

As was pointed out, the linked seller is unsure if resistors are required

 

[Ted]

If you plan on wiring them in purely as drls and bypassing the foglight circuit then the answer is no, you will not need resistors.
Edit: this....

 

[Howard]

Question was "Has anyone used these and would I need to purchase the resistors for my CLS55?"

Sorry , please excuse me for not answering your question.

Forums are about advice as well as answering questions directly , you might not have realised that they won't work in fog. I myself didn't realise that you never used your car when it is foggy.

I also try not to drive when it is foggy , but occasionally , it catches me out , i have to go somewhere in the fog !

Good luck with fitting them

 

[ChrisA]

Sorry , please excuse me for not answering your question.

Forums are about advice as well as answering questions directly , you might not have realised that they won't work in fog. I myself didn't realise that you never used your car when it is foggy.

I also try not to drive when it is foggy , but occasionally , it catches me out , i have to go somewhere in the fog !

Good luck with fitting them

Howard, I know what forums are for and my second post was not aimed at you. If it was I would have "quoted" your post

Getting caught out in the Fog is one of those things that cannot really be avoided but I think from memory I have driven twice in 3yrs in the fog and so long as my rear fog lights are working, that's good enough for me.

I would much rather convert my Fog lights to LED's to use as DRL's which will soon become the law in a few of the European countries I drive in on a weekly basis albeit on new builds

 

[ChrisA]

If you plan on wiring them in purely as drls and bypassing the foglight circuit then the answer is no, you will not need resistors.
Edit: this....

I would just change the H7's so will keep the Fog light wiring as standard and switch on/off when required if at all possible. I will check when I get my car back

 

[KillerHERTZ]

I would much rather convert my Fog lights to LED's to use as DRL's which will soon become the law in a few of the European countries I drive in on a weekly basis albeit on new builds

Its already the law for new cars to have DRLs across Europe, exisitng cars dont need to retro fit them. In any case, if that were true all you would need to do is switch your headlights on.

 

[markjay]

Its already the law for new cars to have DRLs across Europe, exisitng cars dont need to retro fit them. In any case, if that were true all you would need to do is switch your headlights on.

Mandatory switching-on 2 x 55W filament bulbs in broad daylight would have brought about an onslaught from the Green Brigade.

The engine burns additional fuel to generate the energy. Which would seem counterproductive in a reality where car manufacturers remove spare wheels to achieve lower CO2 figures for their cars.

Cue mandatory DRLs... bright, cold-running with low-power-consumption, and everyone is happy.

Personally I believe in the concept behind DRL and have all my cars set to headlamps always on, day or night.

When I buy my next car it will probably come with DRLs, untill then sorry for the increased CO2 emission everyone.

 

[Troon]

I also try not to drive when it is foggy , but occasionally , it catches me out , i have to go somewhere in the fog

A lack of front fog lights wouldn't be a hindrance in such a situation - modern fog lights are useless, particularly when many cars will only let you switch them on with dipped beam. True front fogs are meant to replace headlamps when back-glare is too bad: such conditions would mean it'd be unsafe to exceed walking pace.

 

[markjay]

Can't remember now - can you actually switch on the fog lights without switching on the headlamps first?

I vaguely seem to remember that they both need to be switched on.

If true, then the whole concept of using fog lights as DRLs might not work?

 

[KillerHERTZ]

You need the sidelights on in order to have the front fogs on.

 

[ChrisA]

You need the sidelights on in order to have the front fogs on.

Perfect as I have the upgraded side lights courtesy of your good self

 

[Zu11y]

This is my professional input.

Dont use h7 smd lights, use cree bulbs instead, i wouldn't mess with any circuits and just place them into the fogs and switch on as required.

Not all cars require resistors, try them without first, cree bulbs draw slightly more power so in my experience, most cars dont need them, but if any errors to occur then just put the resistors in.

I have attached an image of a ford focus i just did with cree bulbs.

The glare is due to bad photography and i assure you that in person there is no glare what so ever

 

[Ted]

Agree with the Cree bulbs, but
You have to remember to turn them on every time you get in the car
You have to turn them off every time you get out of the car
Sidelights and rear lights on all the time
No way of dimming them at night unless you turn them off

A simple ignition and sidelight tap and some wiring will give all of the functionality of oem drls and is easy to put back to original if required.