Damn! That's a nice assembly! Good price too. Let me know what they think of it.I just posted a question to a RC member that bought one of these last October as to how it was working out for him. I'll let you know what he has to say. > http://www.lumled.cn/product/185444...rammable_led_aquarium_light_for_3ft_tank.html
I think 90 is a safe bet. I'm thinking of mounting them forward bit and angled back at the rock too to get better spread.90 sounds right to me to avoid spillage,... 60 at that height would most likely bleach, unless your tank was very deep.