The Sunmaster 10K Finishing Lamp is a 600W/10K grow lamp designed to be used in the final 10 days of flowering to increase oil production in susceptible plants.
The very high ultraviolet radiation causes the plant to produce oils as a defence mechanism - this often substantially increases the taste, flavour and overall quality of the final product. Keeping certain types of mould at bay is an added benefit, too.
They can also be used throughout the grow cycle to add more blue spectrum light in amongst HPS lamps. Recommended.