Clean Light Pro 36w for Powdery Mildew

How a UV Light for Powdery Mildew Is Actually Used

Technique decides whether this works, and the window Clean Light give is narrow. Their instruction is two to five seconds on any one spot and no longer, held five to ten centimetres from the plant. That is a sweep rather than a soak. Move the unit slowly across the architecture of the plant and keep it moving. Treatment is meant to be daily, and Clean Light position the unit as both preventative and curative. Their claim is that the dose is high enough to act on surface moulds including powdery mildew and botrytis. It stays below the level that would stress the crop. Some growers mount the unit on a light rail to automate the pass. At thirty-six watts this is the larger module in the range and it covers ground faster than the hobby unit. There is no residue on the crop afterwards and no chemical to wash off.

Safety, Botrytis Limits and What UV Cannot Reach

Take the safety wording seriously, because it is the part buried deepest in most listings. This is a germicidal ultraviolet source and it damages eyes and skin. Clean Light ask for gloves and safety glasses, and the sensible reading is proper UV rated eye protection rather than ordinary safety glasses. Cover exposed skin, never look at the lamp, and keep other people out of the area while it is running. Now for the honest limitation on this method. Ultraviolet travels in straight lines and treats only the surfaces it reaches. Anything shaded by a leaf above it, and anything already inside plant tissue, is untouched. That makes this a surface tool for suppression and prevention rather than an eradication method. It is also why the daily schedule matters more than the intensity does. Miss days and the treated surfaces reinfect from the ones you could not see. The same reasoning makes it useful on room walls and on incoming clones, where every surface can be reached deliberately.

Key Features

• Power: Thirty-six watts, the larger of the two modules in the range
• Dwell time: Two to five seconds on any one spot, and no longer
• Distance: Five to ten centimetres from the plant surface
• Schedule: Daily use, as both a preventative and a curative treatment
• Residue: Nothing is left on the crop and there is nothing to wash off
• Automation: Some growers mount the unit on a light rail for the pass
• Other uses: Treating room walls and quarantining incoming clones
• Safety: Gloves and eye protection, with skin covered and nobody else present
• Limitation: Ultraviolet reaches only surfaces in its direct line of sight
• Consequence: Shaded leaf undersides and internal infection are not treated

Technical Specifications