الإدارة الحرارية لغاسلات الجدران LED الخارجية

التحقق من الحرارة والعمر بدليل صحيح

Thermal mechanism

Tj = Ta + Pheat × Rθ,total. Validate local ambient, power loss and the complete heat path.

Worked example

Illustrative only: 36W × 70% = 25.2W heat; at 1.5°C/W the rise is 37.8°C and at 45°C ambient the screen is 82.8°C. Replace assumptions with approved data.

Evidence limits

LM-80 applies to LED packages/modules, not complete-luminaire lifetime [S2][S3]. Verify driver, seals, optics and installation.

Do not approve when

• No defined temperature point or Tj correlation.
• No worst-case mounting/solar test.
• TM-21 duration or component identity is missing.

FAQ

IP rating does not prove thermal performance. Technical reviewer: 待确认.

Sources

1. IEC 60598-1
2. IES LM-80
3. IES lifetime position
4. LIKELIGHT product

Author: LikeLight Tom, Operations. Reviewed August 24, 2026.