Electrical Characteristics Wattage 9WI18W Voltage Input 110V-275V Line Frequency 50/60hz Power Factor 0.9 Dimmable No Rated Wattage 18W Starting Time Instant Warm-up Time to 80% Light Output Instant Energy saving product Yes Temperature Characteristics T-ease Maximum 55°CMAX Operating Temperature 20°C-50°C T-Storage 30°C-50°C