... casing, for good energy performance3. First-class quality electronic parts and components4. Working temperature rising: less than 15°C5.Energy ... RoHSApplicationOffice, retail stores, supermarkets, schools, hospitals, factories, parks and other indoor places etc.Minimum order quantity50~100pcsPaymentT/T, Western ... , then turn on. 3) Don't touch the metal parts of the bulb, while power is on. 4) Indoor ...