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Hi Glen,
The argument for LED systems is very strong on reliability and operational 
costs and is continually improving with regard to performance, measured in 
choice of wavelengths and intensity. 
I assume that in your confocal set-up you are only using the mercury based 
bulb system to check and align samples and that you only need excitation 
regions that match the laser lines you are using. An LED system that you 
can switch on and off as you please is ideal for such applications and a 
very cost effective replacement to bulbs.  
Commercial bit:
We have only recently included 445nm and 505nm options to our range. Now 
users can choose from 7 options of 400nm, 445nm, 465nm, 505nm, 525nm, 
595nm, and 635nm. 
I will contact you directly with more commercial information.

Best Regards,

Gerry

Gerard Whoriskey
Development Engineer
CoolLED Ltd
CIL House
Charlton Road
Andover
Hampshire
SP10 3JL
 
Mob: 07789535762
Tel: +44 (0) 1264 321321
Dir: +44 (0)1264 320984
web site: www.coolled.com