Thread: D4 LEDs as daytime running lights via iidtool or other.

Apart from using fog lights when not in fog being illegal and therefore not wanting a DRL whose shape could be interpretted as being a fog light, it seems to me that DRL and fog light patterns are mutually exclusive. Fogs have a wide spread whereas DRLs have a very forward-facing beam defined by ADRs that would be useless as fog lights.

There are 2 separate lights in the same unit - DRL is a bright LED, fog light is a proper fog light with a low cut-off.

DRL is on with engine and turns off when parking lights (or headlights) come on like a proper DRL. The foglight part works with the original Discovery switch - it is brighter than the standard foglight.

cheers
Lucas

Originally Posted by Graeme

I couldn't see the drls from 200 metres away on an overcast day so are useless. I'm still on the lookout for bright ones like those fitted as oem to Audis etc.

These ones are fairly bright:

High Quality DRL Daytime Lights Front Daylight Lamps 5 LED Cree HQ V10 Ford III | eBay

Picture below is a sunny Perth morning - I certainly wouldn't want them any brighter!

Cheers,

Gordon

Thanks Gordon. I saw those a few days ago before getting distracted by the Hella LEDaytime 4/5 at a starting price of $130! I wondered how good the UK ones are, thinking they might be a reasonable compromise on price. I decided against $25 4/5 x 1W cheapies because they don't have reflectors.

My concern is being seen on long straight roads such as when crossing the Hay Plains where its easy to look past (not see) a closer vehicle. I might just get a set of those ones.

Hi Graeme,
Why is low beam in your situation not acceptable?
Best Wishes,
Peter
'

Just for information
ADR 76/00 specifies (amongst other things)
7. Intensity of Light
7.1 The intensity of the light emitted by each lamp shall be not less than 400 cd in the axis of reference.
7.3. The intensity of the light emitted shall not be more than 800 cd in any direction.
8. Illuminating Surface
The area of the illuminating surface shall be not less than 40 cm2

Lots of options I guess. I have used Narva 71910 DRLs which fit perfectly into the grill on the D4
http://www.aulro.com/afvb/showthread.php't=209667

This post has gone a bit pear shaped sorry guys tried to attach some pics but not having any success.Not sure if the address above gets you there or not.

Originally Posted by Learner

Hi Graeme,
Why is low beam in your situation not acceptable?

Some of the DRLs I've seen are significantly brighter and therefore more visible than the bi-xenon low beam so for that reason and that the bi-xenon globes are quite expensive that inexpensive DRLs specifically designed for daytime visibility would be preferred. However I've found it hard to determine how close an approaching vehicle is when it has bright DRLs - much easier to tell when the vehicle's low beam is used. Therefore I'm content to keep using low beam for the moment.