Thank you for your advice Albion !
Dear All, I will be shooting in an Astronomic facility located at 16,000 ft above sea level. The idea is to bring a couple of Joker 800 watts. Does anyone know if there is any risk to shoot in a low oxygen environment that needs to be taken into consideration for safety and if the lights will ignite and work ? Thank you very much for your advice. Regards, Alejandro Alcocer DOP Mexico City http://www.alejandroalcocer.com