I have the Orascoptic Zeon Discovery head light that I am selling. I have used them for about 10 hours and then decided I don't use it enough to keep it. It retails for $1000, Students get it for $600, so I am willing to sell it for $500 Or Best Offer. It is a fantastic light and the battery lasts for about 8-16 hrs depending on how bright you set it. Send me a message if you are interested or have any questions.