Here is a nice review done by the weedblog.com below:
There are several LED companies selling various LED grow lights. Although there are similarities between the various brands of LED grow lights, there are notable differences in their design, function and price. In this review we will cover three reputable companies to help LED newbies and seasoned LED growers compare various lights and choose what works best for their given setup and budget. We compare Advanced LED, Dorm Grow LED and Hydrogrow LED. We grade each of these companies based on the following three variables: | Design | Price | Customer Service
400 Watt Diamond Series by Advanced LED
| Design : B + | Price : B | Customer Service: A
Advanced LED is one of the best known and most advertised LED companies. They market very heavily on the Google Ad network. Their line of Diamond Series grow lights have plastic covers called optical lenses on each diode which focus the light to have a narrower range for added penetration. These lights come with a switch which turns some diodes on and off for growth/flower. Although it is a nice feature to have the growth/flower switch, the big downside is that half of the diodes are always off while operating the light so less intensity to the grow area. The DS 400 has 200x3Watt diodes and a hefty price tag of $995. They have great customer service and someone will either answer your call or return a message fairly quickly.
G8 600 LED Grow Light by Dorm Grow
| Design : A | Price : A + | Customer Service: A
Dorm Grow LED is known for their partnership with G8LED and their line of well priced grow lights with the Optimal 8-band color ratio. G8LED is one of the few designs that have both ultraviolet and infrared diodes added in their color ratio. These added wavelengths give growers the edge to grow their best crop. Their LED grow lights have solid construction and are built to last. Dorm Grow LED has very competitive pricing compared to the rest of the market. The G8-600 has 200x3Watt diodes and a discounted price of $699. Their website offers further discounts when you purchase in quantity. They have great customer service and will answer all customer questions.
Penetrator 189X LED Grow Light by Hydrogrow
|Design : A | Price : B – | Customer Service: B +
The Penetrator X Series by Hydrogrow LED is one of the original mass market LED grow lights that has built a strong brand name through time. Hydrogrow is continuously developing and improving the design of their line of LED grow lights. They also have good video tutorials on the internet which showcase their light and give general information about growing with LEDs. The design has circle clusters, each with 21 diodes in them. The Pentrator 189X-Pro has 189x3Watt diodes and the highest price tag of $1299. They have good customer service although sometimes it takes a bit of time to get a response back.