Quote Originally Posted by bobbyhardcore
my set up is in 400 watt lamp in a wardrobe, no fans or intake filters. I think ill get a fan and aim towards the bulb like LIP said to remove a bit of the heat.
Here's the thing, you need to take air out, the best way to do this is too use a cool tube or an aircooled reflector, the draw back of these thing's is that air flow going through ducting, tubing, is noisy, and secondly, regardless of how well designed bulb cooling systems are, light lumens are intercepted as soon as they have to pass through glass shields, you would do best with one or two, or three pc fans or a single fan blowing on the bulb, and an extraction setup at the top of your room. The closer the bulb is too the extraction system at the top of the room the better, hope this makes sense. Someone mentioned 75 degrees, and as your growing in a wardrobe, your at the mercy of outside weather conditions, you have littler control over fluctuating temperatures in your wardrobe, if you can get the temperatures within ideal ranges of 75-80degrees this would be beneficial, but if you can't tackle the heat that 400w bulb will give off, just make sure the temperautres stay below 90.