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Why to choose metal halide lamp in aquarium
使用金卤灯时，需要距离水面达到一定高度。通常最少也要8英寸，提供空气流通的空间使之冷却。很多情况下，普通的空气流通足以保持荧光灯管冷却。金卤灯需要专门的冷却系统才能达到。金卤灯的热辐射才是最可怕的。你无法对热辐射进行任何干预。加强水面与金卤灯之间的通风确实能降低些温度。因此，大家常在这个地方使用风扇。蒸发也是很好的降温方法。通风良好的水族箱蒸发都比较快，因此能保持低温。在nano配置中使用金卤灯，蒸发就是个大问题了。小型水族箱每天可能会蒸发0.5加仑或更多水分。大型而且较深的水族箱也是一个挑战。水表面积相对水体积系数比浅水族箱小。因此，超过150加仑或深度超过2英尺的水族箱最好使用水冷机。以我的经验，双端金卤灯比单端金卤灯更容易破碎。虽然单端金卤灯需要额外购买灯罩，但费用比成品灯架要便宜得多，而且节约空间。
When using metal halide lamp, it is necessary to reach a certain height from the water surface. Usually at least 8 inches, providing air circulation to cool it. In many cases, ordinary air flow is sufficient to keep fluorescent tubes cool. Metal halide lamp needs special cooling system to achieve. The heat radiation of metal halide lamps is the most terrible. You can't interfere with heat radiation at all. Enhancing the ventilation between the water surface and the metal halide lamp can really lower the temperature. Therefore, we often use fans in this place. Evaporation is also a good cooling method. Well-ventilated aquariums evaporate faster, so they can keep low temperature. Using metal halide lamp in nano configuration, evaporation is a big problem. Small aquariums may evaporate 0.5 gallons or more of water per day. Large and deep aquariums are also a challenge. The relative water volume coefficient of water surface area is smaller than that of shallow aquarium. Therefore, water coolers are best used in aquariums over 150 gallons or at depths of more than 2 feet. In my experience, double-ended metal halide lamps are easier to break than single-ended metal halide lamps. Although a single-ended metal halide lamp requires additional lampshade purchase, the cost is much cheaper than the finished lampshade, and it saves space.lvhuat.75ix.com   shangbiaot.75ix.com   zhuangxiut.75ix.com
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