This is one of those little hints and tips I found on the Rover SD1 club forum, but it was buried deep in the thousands and thousands of posts. A quick and easy way to greatly improve the brightness of the tail lamps.
Credit to “SD1Steve” for this modification, in his original thread (you will need to be a member to view).
The Rover SD1 has tail lamps that are woeful at best and downright stupid at worst. They are tiny and badly lit.
I have tried LED in the past, and they just weren’t any better than the normal 233 style bulb, so I reverted back.
I knew about the halogen bulb upgrade early on but I didn’t happen to have any halogen bulbs at hand. I ordered some over the weekend and they arrived today so I thought I would give it a shot.
The bulbs to use are 10W Mini Halogen with a BA9S base. I used Narva 17833,
They are a direct replacement for the 233 style bulb factory fitted, and the results? Amazing. They are about twice as bright, and they light the lens up more, resulting in a nice big bright light. It’s hard to capture with a camera just how much better it is.
And in the (almost) dark.
Check out those awesome warm white LED number plate lights too 😍
I was interested in the dual filament modification, but with the halogen bulbs fitted, I just don’t think it’s needed. I’ll stick with this for now, and if I decide to change later, it’s not hard to do.
I love small little, cheap, modifications that have great results 😁