... :1. with fixed frequency control circuit, it provides with over voltage, over current, overheat and short circuit protection.2. ... related safety standard4. Suitable for mobile phone, MP3, MP4, iPod, iPhone, digitalcamera, gamer, household appliance, etc. Reliability:1. High voltage test: ... 0---50 centigrate4. Storage Temperature: -40---855. Burn-in test: 80%---100%6. Safety Approval Standard: UL,1310 ...