Am I the only one with Led headlight bulbs? I have H7`s. Took a bit of flafing about with a load resistors and relay to stop the flashing but they are brilliant in my book. I had Bi led H4`s on my P38 and they again where brilliant. I took them off when I sold the car and fitted them into my Merc. 2007 TDV8 VSE
2003 TD6 gone.
2002 P38a gone
1999 P38a gone
1997 p38a gone
1993 VSE gone
1992 VSE gone
1966 Series 2a with V8 conversion gone

I had LED main bulbs in for while the ones that look like a Dalek on steroids but they were rubbish , terrible light scatter from being the wrong position of light source . Very similar to putting HID's in, the parabolic reflector just isn't made for it . 2008 MY Supercharged
Rimini Red / Jet
four zone climate
remote park heater
and no ugly kid windows.
magnus satis quod turpis satis

axle, are you talking about the bulbs with dozens of SMD led`s per bulb, if so I agree they are useless

Bulbs like these?
 2007 TDV8 VSE
2003 TD6 gone.
2002 P38a gone
1999 P38a gone
1997 p38a gone
1993 VSE gone
1992 VSE gone
1966 Series 2a with V8 conversion gone

The trouble with LEDs is the amount of light they emit tends to be proportional to their size, and while large LEDs can emit a large amount of light, one that's acceptably small as to be close enough to a filament doesn't emit as much light. Aside from that, the typical high colour temperature of 6000K, while "fashionable", isn't good for vision. Visiting from DISCO3.CO.UK
Discovery 3 TDV6 Auto HSE Zambezi Silver

Could you show us which ones you have used/work please Wayneg...

They are something like these...



Take no notice of the Philips brand, they may or may not make them. Also take no notice of the tiny led emitters, they are a in a different league to the SMD type. They will work plug and play but to get the flashing and bulb error message to stop you need a load resistor and wiring through a relay. The Led driver will go inside the lamp housing but I kept the load resistor outside to dissipate heat. A slot in the lamp housing and all good. 2007 TDV8 VSE
2003 TD6 gone.
2002 P38a gone
1999 P38a gone
1997 p38a gone
1993 VSE gone
1992 VSE gone
1966 Series 2a with V8 conversion gone

just wondering if these would be better with everything contained in the bulb housing,

http://www.ebay.co.uk/itm/40W-Car-Bus-LED-...SwezVW1WBv

They may be small LEDs, but they're not as small as a filament. Strangely though, I see those are H11 bulbs; how come they have transversely placed LEDs when the H11 has an axial filament?  Visiting from DISCO3.CO.UK
Discovery 3 TDV6 Auto HSE Zambezi Silver

Stan, my experience with those type of cob led`s is mixed. Mostly over time sections start to stop working and they get dimmer and dimmer. The type I posted before with the Led driver I have had running for 3 years, expensive when I first got them for my P38 but still going strong in my Merc. They are so bright I took Hid spotlights off my P38 as they were redundant.
I know the light police will go on and on about how they will blind everyone and no doubt melt the polar ice caps but they work for me. Easy to remove if required.
Lost For Words, I just grabbed a photo from google, they come in all types. emitters are on both sides and now they have triangular bulbs with 3 sets. 2007 TDV8 VSE
2003 TD6 gone.
2002 P38a gone
1999 P38a gone
1997 p38a gone
1993 VSE gone
1992 VSE gone
1966 Series 2a with V8 conversion gone

kinda agree with you Wayne re the slight dimming of the cobs but i dont think that will matter for the limited time they will be on/used..

my son has had driver/ballast problems with bulb units similar to yours so yours have done you ok.. ... - .- -.




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So, for someone who knows little about the ever changing world of LED’s... Whats the difference with Stan’s pic & Wayne’s please...

And the reason as to why Wayne’s has lasted 3yrs+ and Stan’s go dim over time... Ooooh Errr missus

been speaking to the wife Craig


i've just looked again at my ebay find and it appears that these to have an 'in line' led driver so they are roughly the same as Waynes...

I cant offer any technical expertise on this but can comment on my experience. The Cob Type led as in Stans picture seem to be made up of many emitters in one blob. The emitters fail one by one over time which gives the effect of dimming. The type I have I presume are single emitters massively brighter compared to the cob

What is a COB LED?

Chip on Board (COB) is the most recent development in LED technology using chips with multiple diodes (typically 9, or more). There is no casing with COB technology which enables a much denser LED array of light compared to SMD. A consistent and controlled light beam is given off, without any visible individual light points, thus offering great optics. COB offers a greatly improved lumen per watt ratio compared with other LED technologies such as DIP and SMD. COB technology gives the best conditions for optimal cooling, which in turn will increase efficiency and lengthen the overall life of the lamp.  2007 TDV8 VSE
2003 TD6 gone.
2002 P38a gone
1999 P38a gone
1997 p38a gone
1993 VSE gone
1992 VSE gone
1966 Series 2a with V8 conversion gone

I guess overall lifetime will vary wildly between different LEDs. In terms of the basic design, Stan's ones are COB (Chip On Board) which generally emit more light in total, while Wayne's are SMD (Surface Mounted Device) so being smaller give "better" focus.

No LED is small enough and bright enough to make a genuinely suitable replacement for a filament bulb though. Even with the smallest of them, the optics just can't match up because they have to be placed on a board of sorts:



LEDs have great potential as an automotive light source, but they need to be designed from scratch, and IMO, we need to start focusing on lower colour temperatures and better colour rendering to make them truly ideal for headlighting purposes.  Visiting from DISCO3.CO.UK
Discovery 3 TDV6 Auto HSE Zambezi Silver

i saw a mondeo the other night with led headlights and seemed very apt at their job...things to come ?.. ... - .- -.




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