Name: high-quality power supply 13-21 * 1W 【Model】: HCFDZ-11221B [Input Voltage]: AC/85-265V [Output Voltage]: DC/39-80V [according to the the lamp beads parameters automatically adjust the voltage】 【output current】: 300MA ± 5% [volume adjustable current] [Output Power] :12-21 1W lamp beads even [Dimensions]: 53 * 21 * 19MM [efficiency]: ≥ 80% [Power Factor: ≥ 0.65 【Frequency: 50/60Hz 【protection functions: over-voltage, overload, short-circuit protection. [Special note: The group of the two white lines as an input, a red one white group output, red LED lights to Pearl cathode white LED lamp beads to negative. Features:. Adopt the original IC, in line with the global standard. Stable and reliable quality, stable performance. Two. Has a perfect over-current, over-voltage, overload, over-temperature, short-circuit, open circuit protection (automatic recovery). . Constant high precision output current DC ripple of job-hopping, low-temperature, long service life. Wide input voltage, high conversion efficiency. The high-precision constant output current, low noise, (according to the design of the LED characteristics) LED lamps use safer, more stable. Long life design, high reliability, 100% load aging and fully functional test. 7. Drive a variety of color power LED. Detailed consultation Contact: Tung phone: 13242422155 Tel :0755-27.21686 million QQ: 2827934620