Some have asked me what LEDs I've been using so far for my optical experiments. Well, these are 10mm diameter "conventional" style LEDs from a source in Hong Kong. They are 1W devices capable of 280000mcd output and look like a normal LED on steroids in that they come in a standard looking clear package with 2 thick leads.
They are available via eBay at £9.30 for 10 off from
Hi Tech LED World. The supplier delivers promptly and with good packaging (and a nice
collection of attractive stamps on the package). They also have a range
of other devices available.
Use the link
http://www.ebay.co.uk/itm/350347623711 .
As mentioned before, I also have some even more powerful LEDs called Phlatlights which are intended for overhead projectors. I've still to fire these up. These are about 10dB more powerful than the 1W LEDs, so are potentially dangerous.
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