LED 投光灯与场地灯对比
投光灯在什么场景开始失效。
投光灯是为"一个目标"服务的工具，场地灯是为"一整片地面"服务的。常见错误是用投光灯去覆盖整片场地，然后发现角落里全是暗区。
| 对比维度 | 选项 A | 选项 B | 优胜 |
|---|---|---|---|
| 配光 | Asymmetric throw, 30-120 degrees | Wide Type II-V distributions | Different tool |
| 安装高度 | 3-12 m | 6-15 m on poles | Area light |
| 均匀度 | Falls off away from the aim point | Designed for even coverage across a lot | Area light |
| Glare and light trespass | Needs shielding and careful aiming | Cut-off optics and house-side shields | Area light |
| 典型用途 | Signs, facades, loading bays | Car parks, yards, distribution centres | Both |
| Cost per lux | Lower for one target | Lower across a large area | 视应用而定 |
结论
投光灯用于立面、标识与装卸区。停车场、堆场以及有照度均匀度要求的场所，应选场地灯，配 Type II-V 配光与合规遮光。
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📋 权威标准出处
IEC 60529 · CIE 13.3 · ANSI C78.377 · IES LM-79 / LM-80 · UL 1598 / UL 8750 — 数据由 CompareDeals 团队核验。