The Secret Jardin Bulb HPS400W delivers powerful and effective lighting for the flowering stage of plant growth. Drawing 400 watts of power, it produces a deep warm-orange glow with a color temperature of approximately 2000 K, which is widely regarded as optimal for inducing flowering and bud development. The bulb mounts into standard E40 fixtures and functions on a nominal voltage of around 100 V, pulling about 4.6 A of current. It emits approximately 55,000 lumens with an efficiency rating near 135 lumens per watt, ensuring a bright yet consistent performance. Engineered for fast operational readiness, the bulb reaches full brightness in about five minutes and can safely restart just three minutes after being turned off. The Secret Jardin Bulb HPS250W grow lights are highly effective, but if you want to dip your toes into other devices, then check out their HPLED 200W Full Spectrum or even the Cosmorrow 100w Full Spectrum.
