Originally Posted by HarleyHog.
Depending on type just pull the rubber boot and change the bulb.
Boots sealed on with silicone, craft knife and carefully work around and remove so you can re-use it.
Re-seal with any silicone, bathroom stuff will suffice.
H3 bulb at Halfords.
Make sure and bend the retaining spring on re-install, lots of pressure, this stops them blowing.
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Originally Posted by Crumpy
Thanks for the help ... I have just ordered 2 off from Sabre International Supplying Audio & Visual Consumables @ £4.95 (Ex VAT) Each & delivery each ... You were correct they are Par36 12.8v 30w, and i am told by the supplier that they are more commonly used as AIRCRAFT LANDING LIGHTS ....chocks away 
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