Quote Originally Posted by bigsmoke07
so you think that 250watt hps would do good
More light is good as long as you keep a few things in mind:

  • If the HPS kit doesn't come with a timer you'll need a heavy duty grounded timer to stay safe (using a 2 prong timer with the remote ballast may result in a fire).
  • Measure how much space you have between the top of your enclosure and the plant canopy, is there enough space to accomodate the HPS fixture and reflector? If yes,
  • How much space does that leave you between the HPS bulb and the top of the plants? A HPS bulb too close to the plants can cause severe heat damage.
  • You'll need to figure out a way to install the remote ballast outside your grow cabinet to keep cab temperatures manageable;
  • You may need to incease your cab's ventilation after the HPS switch (proper ventilation is a good thing anyway);
  • Always use a bulb that matches your ballast - with HPS/MH you can't mix and match;
  • While a fire is very unlikely here are a few things to keep in mind to avoid one - always use the appropriate timer, always use the 250 watt bulb with the 250 watt remote ballast and beware cracked bulbs - most HPS fires are due to a cracked bulb exploding upon ignition.


Here are a few reference posts you may find useful:

http://boards.cannabis.com/indoor-li...-lighting.html

http://boards.cannabis.com/indoor-li...uch-light.html

Energy Services, Energy Solutions Database - Energy Efficiency and Renewable Energy Information

http://boards.cannabis.com/basic-gro...g-hot-air.html