LED 壁灯与投光灯对比
周界照明：哪种灯具该装在哪里。
壁灯的设计前提是贴在墙上向前投射且不刺眼；投光灯的设计前提是可瞄准。装错的那一种，光就会跑进邻居家的窗户。
| 对比维度 | 选项 A | 选项 B | 优胜 |
|---|---|---|---|
| Light pattern | Forward throw with controlled cutoff | Wide or narrow throw from a bracket | 视应用而定 |
| 安装方式 | Directly on the wall, 3-6 m | Pole, bracket or wall at 3-12 m | Wall pack |
| Glare control | Built into the housing | Depends on aiming and shields | Wall pack |
| Appearance | Architecturally neutral on a facade | Visible bracket and body | Wall pack |
| 典型用途 | Building perimeter, egress, loading doors | Yards, signage, equipment areas | 视应用而定 |
| 成本 | 基准 | Similar; aiming labour adds cost | Both |
结论
建筑周界、疏散通道与装卸门用壁灯；堆场、标识与设备区等有明确照射目标的场所用投光灯。两类都要配遮光与截光选项，以满足光污染限制。
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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。