Old thread....lol im sure things have changed. I use
vivosun. Have 4 of them. 1 arrived and the ballast did not work properly. I did think "shit, mine as well just order another one". But, took a second and emailed them sunday morning. To my amazement, i had a response back within an hour. All they asked me to do, was take a pic of the ser number on it for them. They had me a new ballast, so fast, i was just taken aback. I also did not need to send the broken one back, which is great for me....parts. Anyways, from perdonal experience,
vivosun has been wonderful to me. More so than i ever expected. The only thing i did not like, and has now been solved, is they mailed it in the product box. I had a complete hood/ballast show up screaming " GROW LIGHT".....that sucked major ass.
So, i guess to sum it up......outside a bad ballast upon arrival, which was rectified post haste, i have had zero issues while running the
vivosun.......which, i originally bought on price alone, but continue to because of the pricing, quality, and they took care of a proplem when one arose.