Chow_13answered grow question 3 years ago purple lighting is older technology and does not create purple buds. the SF1000( possibly even the sf600) is better then the va1200 let alone the sf2000. I would always recommend a quantum board over a burple light. Less heat, more energy efficient. Better light spectrum and less light degradation from distance. No cooling fan that makes noise or to break. Also the viparspecta is not even sold on the manufactures website anymore. They have moved on to quantum boards as well.
Some of the brands recommend by alot of people in no order are
HLG, Mars Hydro, Spider Farmer
Some of the more budget brands but still reliable
Viparsepctra, Kingbrite, vivosun