Rare and hard to find lamps & light bulbs (UK Light Bulbs.co.uk)
 
As well as selling all the usual light bulbs, UK Lightbulbs.co.uk stocks rare and hard to find light bulbs which have been accumulated from suppliers all around the world.
 
New products include American ANSI coded light bulbs. ANSI (American National Standards Institute) coded light bulbs meet specific industry standards for light output, bulb shape, base type, beam spread and other light bulb specifications. If a manufacturer offers a light bulb with an ANSI coded lamp designation, that light bulb should be identical to a similarly ANSI designated bulb from other manufacturers.
 
UKLightbulbs.co.uk are specialists in light bulbs for Cine Projectors and most of the Capsulated Shaped, Dish Dichroic, Tubular Style light bulbs found on their website are for the older hard to find projector.
 
Categories on their website include Aircraft Interior Lighting, Dental & Microscope Light bulbs, Railway Carriage Light Bulbs so I don't think they'll have a problem supplying a light bulb for your fish tank!
 
Their website isn't the easiest to navigate, but they're a small business offering personal service so if you get stuck simply drop them an email or pick up the phone for advice (01204 847 085).
www.uklightbulbs.co.uk