The HPS Bloom 400W is a reliable, high-intensity grow light designed specifically for flower — emitting a strong red-yellow spectrum that encourages dense bud formation, faster bloom cycles, and higher yields. It's perfect for growers running soil or hydro setups in tents or small rooms that want full coverage in a compact cultivation space. Drawing 400 watts of power, it hits a perfect balance between performance and energy draw — powerful enough for serious results without overheating your grow room. It’s an ideal option for growers who prefer traditional HID lighting that want consistent bloom performance. For those who like to mix spectrums or extend veg under HPS, the HPS Dual Express 400W delivers full-cycle performance. If you're going the LED route with strong bloom output, the Antares 360W is a solid choice.
