![](https://urbangardening.ie/152-large_default/sunmaster-600-watt-hps-dual-spectrum-bulb.jpg)
![](https://urbangardening.ie/152-large_default/sunmaster-600-watt-hps-dual-spectrum-bulb.jpg)
Sunmaster 600 watt hps dual spectrum bulb
The Sunmaster Bulbs are spectrally enhanced for horticultural use and have a higher level of light energy (about 10%) for accelerated photosynthesis. Promotes healthy plants while encouraging stem elongation and increased flowering and fruiting in your indoor garden.