USB Characteristic:
| Serial No. | Parameter | Description |
| 1 | Panel Material | PC 94-V0 |
| 2 | Inside material | Tin phosphorous bronze |
| 3 | Surface finish | Glossy |
| 4 | USB DC output | 4.2A/5V |
| 5 | Output voltage tolerance | ±5% |
| 6 | Output power | Max.21W |
| 7 | Service life in hours | 3000h 21W |
| 8 | Efficiency | 78% |
| 9 | No-load power consumption | Max 0.2W |
| 10 | Input voltage | 100~240v/AC 50~60Hz |
| 11 | Color | White RAL9003 Black |
| 12 | Number of terminals | 2 screw terminals |
| 13 | Electrical insulation class | Class II |
| 14 | IK degree of protection | IK04 |
| 15 | IP degree of protection | IP21 |
| 16 | Dimension of product | 45*45mm |
Environmental requirements
| Serial No. | Parameter | Description |
| 1 | Operating temperature | -10℃~+40℃;Operating |
| 2 | humidity | 20%~90% RH |
| 3 | Storage temperature | -20℃~+85℃;storage |
| 4 | humidity | 10%~95% RH |
| 5 | Resistance to pressure | ≥3Kv/AC 1min |
| 6 | Isolation resistance | 500v DC/100MΩ |
1).Dual port USB charger of 4.2A 5VDC;
2). Protection type: Short time short-circuit protection;
3).With identifying chip: can automatically recognize different mobiles and suit its request charging AMP to meet the charging speed;
4) Product be certificated by CE,IEC60950 FOR LVD and IEC55024,IEC61000 for EMC;
5). All materials be ROHS directive tested;
| Testing Item | Testing Standard | Testing Data |
| Aging test | USB charger for 2 hours with LED lights must always light | 2 hours |
| High and low pressure 90V-264V to normal operation | 90V-264V normal | |
| Power test | Rated output voltage range: no-load: 5V±5%, load:5V±5% | No-load: 4.92-4.95V, load: 5.04-5.1 |
| Rated output current | 5.0V | |
| Output ripple: load 1A/2.1A, Vpp<200mV | 117mV-146mV | |
| Short circuit protection: output positive and negative short for 2 minutes, after the break to work properly | 2 minutes | |
| Pin output voltage: D-: 2.75VDC/D+:2VDC, subject to actual test value | D-:2.77V/D+:2.763V | |
| Pressure test | Under normal climatic conditions, the input and output terminals should withstand the corresponding voltage(USB-10, 101 series for the 1500V, the other is more than 3000V), Generally every test a minute without breakdown flashing phenomenon was qualified, and leakage≤5mA. | 3000V0.68mA-0.69mA |
| Insulation resistance test | In the normal temperature environment, AC input plug and DC input plug between the input DC500V, 1 minute after the insulation resistance of 7 trillion or more | ∞ |
| Grounding resistance | In any case the resistance shall not exceed 100mΩ | |
| Temperature rise test | At room temperature 30℃rated work, the charger rated for 2 h after the measurement of its shell surface temperature change <1℃/ h that the temperature is stable, this time measuring the surface temperature of its shell <50℃ | Pass |
| Limit load | Test the product load current limit can run the load value | pass |
