Protect/etc.) RL02's and RA81's use different bulbs; the #73 is for the RL02, and is 14V. The #86 is for the RA8n, and is 6.30V. You can put the #86 in a RL02, and while it will be real bright, the lifetime will be measured in hours. Put the #73 in a RA8n and it will be dim, but at least it'll last a while :-). These bulbs are readily available in the US from most "old-line" electronics distributors. Mail order places that stock them are Newark and Mouser; the relevant Newark URL's are http://search.newark.com/part_detail.phtml?PART%5FID=250&VID=250&10… and http://search.newark.com/part_detail.phtml?PART%5FID=250&VID=250&10… If you're going to be doing this a lot, you ought to find yourself a bulb puller. Getting those bulbs in and out of recessed sockets is a whole lot easier with such a tool! Tim. Received: (from major@localhost) by minnie.cs.adfa.edu.au (8.9.3/8.9.3) id XAA17861 for pups-liszt; Tue, 6 Mar 2001 23:02:25 +1100 (EST) (envelope-from owner-pups(a)minnie.cs.adfa.edu.au)