400W HPS Grow Bulb

The 400W HPS Grow Bulb from Vivosun is a high-intensity discharge lamp that supports the flowering stage of cannabis cultivation. Known for its strong red and orange spectrum, this bulb enhances bud production and density.

This bulb fits into standard HPS fixtures and is commonly used in indoor grow setups. It's effective in medium-sized grow tents or rooms where maximizing flower yield is a priority. Pairing it with a compatible ballast and reflector will optimize its performance.

Ideal for both home and commercial growers who are focused on achieving substantial yields during the flowering phase. While beginners can use it, those with some experience will better appreciate the benefits of its spectrum. It's primarily an indoor solution but can also be used in greenhouses to supplement natural light.