Positive Grow B.V.
Cornelis Trooststraat 31-35
1072 JE Amsterdam, The Netherlands
Tel. +31.(0)20.4708600
Fax. +31(0)20.4708588
Chambre of Commerce: 33289628
VAT nr.: NL805893271B01
Email: info@positivegrow.nl
Webdesign by Pantheon BV

Light

TIP!
Replace your bulbs every year. The effectivness of the light decreases thru the year.
Light, air, water and feed together are the most important ingredients to cultivate plants

take "carbo hydrates and chorofyl from these ingredients. In converting these, oxygen is formed. This process is called photosynthesis. Photosynthesis is essential to cultivate plants in a natural way. Because of the lack of natural light indoors you have to rely on artificial light. Artificial light consists of those parts of the light spectrum which are important for the development of the plant.

The cultivating and flowering behaviour of a plant is determined by the balance between light and darkness. To successfully grow a plant the cultivating stage is very important. The cultivating stage is also called the vegetative stage. In this stage the cutting develops into a grown plant. Depending on the sort of plant, this takes approximately 10 to 14 days. During this stage the plant requires 18 hours of light and 6 hours of darkness. During the flowering stage the ratio is12:12 hours. The flowering stage is the period in which the plant forms its buds, the product that you ultimately want. The duration of this stage is again, depending on the sort of plant, between 8 and 10 weeks.

Make sure that when the lights are not on, the laboratory is really dark. Even a little bit of light will disturb the flowering process (the plant reverts back to the cultivating stage and this can take up to a week to restore). To make your laboratory pitch dark, Positive Grow sells black/white foil in various formats.

Tip! Don't check on the plants in the dark periods (night time of the plants), not even for a little while. Just take it that if everything is ok during the day, it will be ok during the night.

The above illustrates how important and intensive the use of light is. At Positive Grow we consider it essential that for an optimum result and safety nothing but the best quality will do for all equipment necessary for artificial lighting.

Positive Grow only sells light systems with the best quality parts, parts that guarantee quality, safety and longevity. The light boxes of Positive Grow have been equipped with Solid State Relay, have separate fuses and upon request can be fitted with Filter Coils. Solid State Relays prevent surges of electricity during the start-up of your lights and prevent that the timers (which switch the lights on and off) will blow. Filter Coils prevent "pollution" on the electricity board. Because of which your hobby will be less noticeable with your electricity provider.

The lights that Positive Grow sells are quality brands (Philips, Osram, Sylvania), which guarantee a long life and high return. Positive Grow recommends replacing your light bulbs every year. When the light bulbs get older, the light return and therefore the return of your plant will diminish.

Apart from selling light systems and parts, Positive Grown also has its own service and repair department. Any questions with regard to faults, repair or just advice can be directed at this department. Positive Grow offers the possibility to supply dated light systems with Filter Coils and Solid State Relays. Do you need advice or information in order to safely and efficiently install a light system? We at Positive Grow would be delighted to help.


TIP!
Never touch or smell a burned capacitor. A burning capacitor releases electrolytgas, which is not really healthy.