Unverified80% confidenceTradeoffTime unknown
覆盖面积与有效驱赶强度成反比，标称200㎡的机型实际有效驱赶范围往往不足80㎡，大面积场所应按每80-100㎡布置一台计算
1
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80%
Confidence
Long-term
Relevance
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Unverified投射比（throw ratio）决定投影距离：投射比1.2的机器投100寸需约2.6米距离，小户型或帐篷内空间不足时应选投射比≤1.2的短焦机型78% similarUnverified适用面积按功率估算：粘捕式/吸入式室内建议每20-30㎡配一台，电击式室外覆盖可达半径20-30米；标称面积虚高常见，实际有效诱捕范围约为标称的一半77% similarUnverified覆盖面积按每节点实际有效覆盖80-120㎡估算（含穿墙衰减），120㎡内两节点足够，200㎡以上或复式户型建议三节点，节点并非越多越好，过密会引发漫游频繁切换76% similarUnverified投射比决定摆放灵活性：投射比1.2:1的机型投100英寸需约2.6米距离，短焦(0.8:1以下)机型1.5米内即可投100英寸，小房间/床头投墙需选短焦或超短焦74% similarUnverified存放单反+2-3只镜头选40-60L，加长焦或多机身则80L起步，容积按实际器材体积×1.5预留取放空间74% similar
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