Well made product Well made product. We enjoy using it. I’m looking forward to the benefits this winter especially since with line in Pennsylvania.

Overjoyed with my results Woohoo! My vitamin D levels went up 58% in 5 weeks!!! I used it 6 days a week. This is HUGE because NONE of the vitamin D supplements I’ve taken over the last 25 years have helped increase my levels. FINALLY something is going in the right direction. I am seeing an associated decrease in inflammation too. As D goes up inflammation goes down. Yay! 😃 💃🏻 PS. Though I don’t take a vitamin D supplement anymore, I still take K2 to get the full benefit.

Vitamin D lamp, I should have bought it before! The shipment was fast despite the distance separating us from the USA (I'm in Europe). The product was very well packaged and arrived in perfect condition. Sperti and UPS sent precise instructions for payment of customs clearance. The instructions for activating the bulbs are very simple and well explained. I am very satisfied with my purchase! Thank you

Everything was straightforward Everything was straightforward. The 15% discount is what made me "pull the trigger". Haven't yet been able to determine whether my vitamin D levels have increased. Have only been using it a couple of weeks.

Wonderful product Wonderful product, no question. It helps a lot. The northern latitude here doesn’t allow for sunshine days for the largest part of the year and supplements are neither adequate nor safe as it is the case with other fat-soluble vitamins. Thanks for your care and support and sorry for the delay in writing my review.