The light is great it works exactly as I expected it to. My only complaint was I got dinged with handling and taxes extra. I ordered 2 of these bulbs plus the fixtures they go in. They were listed at full retail price on the invoice even though they were on sale when I bought em and had to pay 111.00 extra. I really, really dislike private shipping companies like FedEx over USPS. Sure I likely should have paid the taxes, but not those handling fees that make up half of the bill.
Every time I send an email or have a question I always get a quick response and answers to what I need thank you again for sending the UVB Bulbs
I've grown both with and without uvb ,for indoor growing it is a absolutely a thc and terpene booster, Artificial sunlight lacks uv light .I have experimented extensively from short durations to longer even damaging leaves in the process for me I have found a timer with a 2 hrs on and 1 or 2 hr off intervals allows for the best results I go as many as 4 cycles per 12 hr lights on period, and most intensely from after the stretch until harvest.Uvb also helps control pest and mold so I use for short duration during early flower and even in veg to assure a clean environment.
The UV-B light is killer on the last 3 weeks of flower!
Don't know about the rest of customer service, I've only delt with Adam but he sure does do a good job!