H9 -v- H11 (main beam) halogen bulbs

goltho · 5th February 2024, 08:55

Anyone ever successfully fitted H11 main beam bulbs? I'm being given conflicting information from bulb suppliers. I'm referring to halogens, not LEDs.

My main beams are H9. Osram and Philips don't produce uprated H9s but they do produce updated H11s. My usual supplier tells me categorically that H11s are different to H9s, whereas many other suppliers large and small categorically state that they are identical. They all agree that H9/H11 LEDs are interchangeable.

Somewhat conflicting info.

Dougie.

goltho · 5th February 2024, 10:02

I've just been sent a couple of helpful photos by my supplier. They do show some differences in the two pins which may or may not be work-roundable.

I've ordered a cheap (£7) pair of H11s from Amazon to experiment with.

The bulb on the left is the H9.

suzublu · 5th February 2024, 13:39

You'll need to cut out the central plastic pin in the middle, then it'll fit. Been there, done that 😎

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goltho · 5th February 2024, 13:41

Quote:

Originally Posted by suzublu

You'll need to cut out the central plastic pin in the middle, then it'll fit. Been there, done that 😎

Perfect! Thank you.

5th February 2024, 08:55	#1
goltho Can't help myself Rover 75 CDTi 2005 Join Date: Jan 2018 Location: Lincoln Posts: 876 Thanks: 469 Thanked 150 Times in 113 Posts	H9 -v- H11 (main beam) halogen bulbs Anyone ever successfully fitted H11 main beam bulbs? I'm being given conflicting information from bulb suppliers. I'm referring to halogens, not LEDs. My main beams are H9. Osram and Philips don't produce uprated H9s but they do produce updated H11s. My usual supplier tells me categorically that H11s are different to H9s, whereas many other suppliers large and small categorically state that they are identical. They all agree that H9/H11 LEDs are interchangeable. Somewhat conflicting info. Dougie. __________________ R75 C2 RJBLH Connoisseur CDTi Auto Saloon • Built 08/02/2005 @14:57 hrs: Registered 26/08/2005 • 122nd of 141 built that day • British Racing Green Pearlescent (HFF) • Sandstone leather with black piping (SPJ) • 139,000 miles Last edited by goltho; 5th February 2024 at 10:03..

5th February 2024, 10:02	#2
goltho Can't help myself Rover 75 CDTi 2005 Join Date: Jan 2018 Location: Lincoln Posts: 876 Thanks: 469 Thanked 150 Times in 113 Posts	I've just been sent a couple of helpful photos by my supplier. They do show some differences in the two pins which may or may not be work-roundable. I've ordered a cheap (£7) pair of H11s from Amazon to experiment with. The bulb on the left is the H9. __________________ R75 C2 RJBLH Connoisseur CDTi Auto Saloon • Built 08/02/2005 @14:57 hrs: Registered 26/08/2005 • 122nd of 141 built that day • British Racing Green Pearlescent (HFF) • Sandstone leather with black piping (SPJ) • 139,000 miles Last edited by goltho; 5th February 2024 at 10:30..

5th February 2024, 13:39	#3
suzublu This is my second home rover 75 1.8 vvc club se wedgwood blue Join Date: Aug 2009 Location: Seaton Carew Posts: 26,944 Thanks: 65 Thanked 7,142 Times in 4,642 Posts	You'll need to cut out the central plastic pin in the middle, then it'll fit. Been there, done that 😎 Sent from my SM-A145R using Tapatalk