Bought a tsw2000 off Amazon last spring (so like 16 months ago ish). Came home last week and half the light was off. Contacted mars through Amazon ask seller a question thing. They sent me a list of things to do the next day and wanted me to respond to each thing. Basically just unplugging things in order. Determined 1 driver was busted and sent me tracking for the new driver the next day. Great except the driver they sent had a different plug then mine so I had no way to plug it in. Contacted again though Amazon. They replied quick with videos on how to splice and connect the plug. I'm not an electrician and not really comfortable soldering a light that spends most of its time on with either nobody home or everybody sleeping. I responded to them that I wasn't comfortable fixing it myself and to send me just a new plug/adapter and I'd be fine. They didn't argue at all, next message I got was they were sending me a brand new light with the tracking number and new light should be here Monday. So in short, from my 1st email to them until the replacement driver came was like 10 days and they shipped the new light the day I contacted them with the cord problem with the new driver. So super happy with the customer service on a year light that's over a year old