Decided to order the full interior LED light kit from Powerful UK even though I didn't fancy having to file the tabs off the electrical connectors like they show on their website.
Turns out I didn't have to. You just have to bend the pins slightly inside the new light assembly and the connector goes on as it was intended.

LED makes such a difference to the interior...I hate yellow bulbs with a passion Gone to a good home: 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory and clear glass = "Rory"
New Defender D300 90
1974 Series 3 Lightweight = "Millie"
My preferred specialist: www.glenrands.co.uk
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They list a few things I'm tempted by once I've finished putting mine back together. I like the cill plates they do along with the LED's.

Am almost tempted by one of their steering wheels too but would like to see/feel one before ordering which won't happen so looking for owners thoughts. 2002 4.6 Vogue SE - Alveston Red with Lightstone Leather
2007 Range Rover Supercharged in Java Black with Ivory Leather
2012 Range Rover 5.0 SC Autobiography in Indus Silver with Jet/Ivory Interior
2012 Range Rover 4.4 TDV8 Autobiography in Baltic Blue with Sand Interior

Hmmmm.... I have seen the bulbs PowerfulUK buy on Aliexpress and they don't have the best reviews. Cheap LEDs are exactly that and it's not long until they fail or flicker.

Here's the topic and how-to guide I posted for the full LED upgrade. I also have stock of the retrofit LED units.

https://www.fullfatrr.com/forum/topic62660.html

For any of the W5W bulbs, I only recommend Philips or Osram. You may get lucky but I'd rather have something last the life of the car. 2015 Range Rover Autobiography 4.4 SDV8

I replaced all my interior bulbs with an LED kit from evilbay. Every one has failed completely or gone into a flickering mode. Hopefully, PowerfulUK’s are better quality. Ron B. VK2OTC
2004 L322 V8 Auto
2007 Yamaha XJR1300
Previous: 1983, 1986 RRC; 1995, 1996 P38A; 1995 Disco1; 1984 V8 County 110; Series IIA

I purchased a full set from Bond Express on Amazon 2 years ago, no issues so far and significantly cheaper at £28
No modifications like filing needed and all were very easy to fit.
My kit had a bonus of including the under mirror lamps but these did need the addition of resistors to work properly.

£89 seems silly money to me.

David Range Rover 4.2 Supercharged 2006
Ford Focus EcoBoost 1.5 2017
MG TF 2003

Previous Cars of note
Land Rover Discovery 2
Jaguar Mk2 3.8 - Company car
MG Midget 1974 - Concours

I just thought I'd give them ago because I always have my interior lights in off mode when a door opens. Me and my dog like relaxing on the tailgate when we're out with the caravan and I worry about battery drain so hope these are more battery friendly.
How do you decide what is an expensive or cheap LED? An expensive one may well last longer but there's no guarantee.
Are cheap bulbs to cheap?
The Led bulbs in our house were meant to last until I was about 150 years old but they haven't.

Philips and Osram come with long warranties... much like any electrical, thats a giveaway to the quality! And the other way of choosing a good bulb, again as with most electricals, is from a brand you recognise.

In my personal view, a good quality LED bulb costs around £5 per bulb.

Like I say, you may get lucky or you may get a few bulbs cause issues. All I'm saying is I took a picture of their bulbs, reverse searched it on Google images and found them on Aliexpress to find the reviews were 3/5 (iirc). 2015 Range Rover Autobiography 4.4 SDV8

The problem with LED's that people buy for use on cars is that they choose 12v ones, car voltage is not 12v, it's nearer 13v most of the time and substantially higher when the engine is running. The 12v LED's (cheap ones) have a resistor to drop the supply voltage down to the LED voltage usually 1 to 3v dependent on colour etc. The more expensive LED's have a voltage regulator and often have a voltage rating of 10 to 30v, these will be much more reliable in automotive applications. The one caveat with the voltage regulator ones, they wont dim / fade in / out as per some interior lights. BMW i3 Electric Car
2012 Full Fat RR 4.4 TDV8 (now gone)
2006 VW Touareg 3.0 TDi V6

The chips or the diodes are prone to failure on cheap ones... simply because they're cheap, not so much voltage. I also highly doubt they're tested - a good brand are likely to test their bulbs in HALT to verify the lifespan - I highly doubt a little reseller warehouse does the same at £1 a bulb.

I've can recommend Philips ones, having used them for over 5 years (originally fitted in my Mercedes then swapped them to my RR when i bought it) and can confirm no issues and they do dim.

Spending £150 on some good bulbs on a car that originally cost £80-90k is surely doing it a bit of justice. 2015 Range Rover Autobiography 4.4 SDV8

Very interesting chaps. I'll let you know when the first one stops working.