what exactly are these?
http://cgi.ebay.com/10-x-650nm-5mW-...ryZ53141QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
are they lasers that just need a power supply?
or just diods or something?
http://cgi.ebay.com/10-x-650nm-5mW-...ryZ53141QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
are they lasers that just need a power supply?
or just diods or something?