Had 4 halogen downlights with drivers in my bathroom. Then I replaced the halogen bulbs in them with 4 of this type of Crompton LED bulb as they were the only ones that worked perfectly without the need to remove the fittings and transformers/drivers that had worked with the halogen bulbs. These 8 bulbs I have left were bought new as spares to replace any failed/old bulbs in future. But I have since replaced all of the downlighters with new sealed LED units so all 8 of these unused bulbs need a new home.

About the bulbs....

Important bits that are on the boxes and on the Crompton website:
LED Glass MR16
Non-dimmable
Indoor use only
Suitable for fire-rated downlights
Crompton say they are deal for retrofit as they are compatible with most existing halogen transformers (they worked for me) - but do check Crompton Lamps website for details (URL removed) lamps.com
GU5.3 cap fitting (two thin pins in the base - your fitting needs to suit this type)
20,000 hours average rated life
10,000 switching cycles
5W 12V
Low energy alternative for 35W halogen bulb
A+ rating when bought but note that Crompton have since changed that to G on the updated model with part number 14682 and higher lumens. Think bulbs, like some electrical appliances, got a recategorisation for energy efficiency.
4000K Cool White
480 Total lumen
350 Useful lumen
GU5.3 cap fitting (two thin pins in the base - your fitting needs to suit this type)
Size: Top of bulb has a diameter of 50mm
Height of bulb from top to bottom of pins is 46mm

Be very happy for the to go to one Freegler.

Prefer pick up from my place, or my front porch if out, but happy to travel 6 miles or so if it helps.

I hope these will be of use to someone.

Crompton LED Glass MR16 GU5.3 cap downlight bulbs (Clarkston G76)