Dual spectrum grow lamps allow users to grow a wide range of plants under the same lamp through both the vegetative and flowering stages of plant growth.

The dual spectrum grow lamp from the ever increasing Sunmaster (Venture) range, a lamp that in our opinion will shortly overtake the Grolux as the leading dual spectrum lamp in the hobby market. 

It uses the same technology as their 95,000 lumen sodium lamp but instead of producing the extra 5000 lumens of red light, they have tweaked the output to provide extra blue spectrum. 

The result is a lamp that produces the same amount overall lumens as a Grolux, but emits more of both the red and blue spectrums.
Output : 90000 lumens.