Features: 1. Use low frequency working system to avoid problems caused by syntony then ensures high reliability. 2. Invariable output power (180~250V) makes the lifetime of the lamps extended by 30%. 3. With high power factor over 0.95, THD less than 10%, peak coefficient less than 1.4 makes it save more than 30% energy. 4. Advanced circuit design with over-loading, over-heating, short circuit protection and other protections. 5. Advanced circuit design with over-loading, over-heating, short circuit protection and other protections. Rated Wattage: 35W/70W