recommend you stear clear for DDM Tuning they're customer service is atrocious! I bought a 8000k "Raptor Kit" and it took 2 Weeks for it to get to my house! (Shipped from China) On top of that my ballast blew out after a week. Thankfully I had a "Lifetime Warranty" I sent in a ticket for a replacement ballast TWICE!
and never received a reply. It's been 8 months now.
I would stick to Meng (their customer service is superb) or a local seller who you can come back to in the event of a defective part.