Handla: 400w

Small Choke: Blocking Inductor for 600W Light Bulb
Small choke for 600 Watts HPS light bulbs
This inductor inserted before the ballast prevents your electricity provider from identifying the ballast.
This is because the inductor blocks the transmission of a measurable frequency range into the elctricity mains. A very convenient accessory.

Online Growshop: 400w

Lightbulb Osram - Nav-T-Super - 250W
This lightbulb emits light in the red/yellow spectrum necessary for the flowering stage.
Since it lacks the blue spectrum it is not suitable for the vegetative stage.
Works only with the right ballast (HPS) and a E 40 socket.
This lightbulb has 26 000 Lumen.

Köp: 400w

Small Choke: Blocking Inductor for 400W Light Bulb
Small choke for 400 Watts HPS light bulbs
This inductor inserted before the ballast prevents your electricity provider from identifying the ballast.
This is because the inductor blocks the transmission of a measurable frequency range into the elctricity mains. A very convenient accessory.