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DISCO3.CO.UK > Technical (D4)

Whats the difference?
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Batfink
 


Member Since: 31 May 2017
Location: Isle of Sheppey
Posts: 1510

United Kingdom 2006 Discovery 3 TDV6 HSE Auto Zermatt SilverDiscovery 3
Whats the difference?

Have seen d2s and d4s bulbs for sale but they look identical. Does anyone know what the difference is between them? 2006 TdV6 HSE.  
Post #188028016th Nov 2017 9:29 pm
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JMack
 


Member Since: 02 Aug 2014
Location: Edinburgh
Posts: 1517

Scotland 2006 Discovery 3 TDV6 Commercial Manual Java BlackDiscovery 3

One big difference is their operating voltage, 85v for D2's, 42v for the D4's.

Other is the D4's are mercury free.  
Post #188031616th Nov 2017 10:26 pm
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Batfink
 


Member Since: 31 May 2017
Location: Isle of Sheppey
Posts: 1510

United Kingdom 2006 Discovery 3 TDV6 HSE Auto Zermatt SilverDiscovery 3

Thanks for that. Do you know why the voltage difference and what they would be used for/in? 2006 TdV6 HSE.  
Post #188035516th Nov 2017 11:54 pm
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JMack
 


Member Since: 02 Aug 2014
Location: Edinburgh
Posts: 1517

Scotland 2006 Discovery 3 TDV6 Commercial Manual Java BlackDiscovery 3

At a guess the voltage difference is maybe just down to improvements/changes in the technology.
I presume D2's are older than D4's.
So newer vehicles would use D4's, maybe even D4's!  
Post #188072317th Nov 2017 11:21 pm
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