Countdown Timer 1, high brightness 2, solid shell---water-proof and dust-proof 3, longer service life Countdown Timer Main parameters: 1, Average power: 300< 10W. 400< 15W. 2, Chroma: Red (620-626), yellow (590-595), green (504-508). 3, Light source life: ≥50000h. 4, Environment temperature for operation: -40°C~+75°C. Countdown Timer