OSRAM Original 12V P21/5W halogen auxiliary lights 7528-02B in double blister - clear/silver

The right bulb is always a good bulb!

Works as intended, good value replacement.

Not an halogen bulb as others have said, but does a good job for the price.

Although it may just be a lamp, you should be aware that there really is a quality difference between them all. Osram have always been at the upper end of the market. This lamp will outlast any of the cheaper ones you may find. For the sake of a few pence, always try and buy quality like these.

Cheap and cheerful replacement pair of bulbs - but I am certain these aren't halogen. I expected bright white halogen light, but these seem like regular standard filament bulbs.They do the job though

Just the job, can’t say about longevity as only had them a month. Delivered quick and easily installable - both nothing to do with the light bulbs.

I bought a cheap one and it lasted 1 day, so paid a little more for osram and it's still going.

Fitted my mk1 Focus. Seemed to work great, unfortunately sold the car within 4 or 5 months of buying this so can’t comment on lifespan.