i have alway use air cooled but getting a new (4 ft dome type) for veg area need some insight, on open air reflectors is vertical blub postion or horizontal bulb posityion which is better ? pros and cons to bulb position , thanks for all help ..
My 600w HPS is to be hung horizontally, I do it, but can never get used to it, where as my 400w MH is to hang vertically ..but no longer used, I prefer to hang vertically to maximize the light emitted, otherwise you need a reflector , that will reflect and will give you some type of light loss, best reflector I found so far is the gull wing type with minimum burn spot places on the surface area. peace "V"