| Output Power (W) | Rated Input Voltage (Vac) | Rated Output Voltage (Vdc) | Output Current Range (A) | Precision | Ripple and Noise (mVp-p) |
| 300 | 200—240 | +5.0 | 0-60.0 | ±5% | ≤200mVp-p @25℃ |
| 1 | Input character | ||||
| Item | Description | Tech Spec | Unit | Remark | |
| 1.1 | Rated voltage range | 200-240 | Vac | Refer to the diagram of input voltage and load relation. | |
| 1.2 | Input frequency range | 47—63 | Hz | ||
| 1.3 | Efficiency | ≥85.0 | % | Vin=220Vac 25℃ Output Full Load (at room temperature) | |
| 1.4 | Efficiency factor | ≥0.40 | Vin=220Vac Rated input voltage, output full load | ||
| 1.5 | Max input current | ≤3 | A | ||
| 1.6 | Dash current | ≤70 | A | @220Vac Cold state test @220Vac | |
| 2 | Output character | ||||
| Item | Description | Tech Spec | Unit | Remark | |
| 2.1 | Output voltage rating | +5.0 | Vdc | ||
| 2.2 | Output current range | 0-40.0 | A | ||
| 2.3 | Output voltage adjustable range | 4.2-5.1 | Vdc | ||
| 2.4 | Output voltage range | ±1 | % | ||
| 2.5 | Load regulation | ±1 | % | ||
| 2.6 | Voltage stability accuracy | ±2 | % | ||
| 2.7 | Output ripple and noise | ≤200 | mVp-p | Rated input, output full load, 20MHz bandwidth, load side and 47uf / 104 capacitor | |
| 2.8 | Start output delay | ≤3.0 | S | Vin=220Vac @25℃ test | |
| 2.9 | Output voltage raise time | ≤90 | ms | Vin=220Vac @25℃ test | |
| 2.10 | Switch machine overshoot | ±5 | % | Test conditions: full load, CR mode | |
| 2.11 | Output dynamic | The voltage change is less than±10% VO; the dynamic response time is less than 250us | mV | LOAD 25%-50%-25% 50%-75%-50% | |
| 3 | Protection character | ||||
| Item | Description | Tech Spec | Unit | Remark | |
| 3.1 | Input under-voltage protection | 135-165 | VAC | Test conditions: full load | |
| 3.2 | Input under-voltage recovery point | 140-170 | VAC | ||
| 3.3 | Output current limiting protection point | 46-60 | A | HI-CUP hiccups self-recovery, avoid long-term damage to power after a short-circuit power. | |
| 3.4 | Output short circuit protection | Self-Recovery | A | ||
| 3.5 | over temperature protection | / | |||
| 4 | Other character | ||||
| Item | Description | Tech Spec | unit | Remark | |
| 4.1 | MTBF | ≥40,000 | H | ||
| 4.2 | Leakage Current | ＜1(Vin=230Vac) | mA | GB8898-2001 test method | |
| Item | Description | Tech Spec | Remark | |
| 1 | Electric Strength | Input to output | 3000Vac/10mA/1min | No arcing, no breakdown |
| 2 | Electric Strength | Input to ground | 1500Vac/10mA/1min | No arcing, no breakdown |
| 3 | Electric Strength | Output to ground | 500Vac/10mA/1min | No arcing, no breakdown |
| Item | Description | Tech Spec | Unit | Remark |
| 1 | Working temperature | -30—50 | ℃ | Refer to the use of environmental temperature and load curve. |
| 2 | Storing temperature | -40—85 | ℃ |
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| 3 | Relative humidity | 10—90 | % |
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| 4 | Heat dissipation method | Fan cooling |
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| 5 | Air pressure | 80— 106 | Kpa |
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| 6 | Height of sea level | 2000 | m |
Above is the top view of the bottom shell. The specifications of the screws fixed in the customer system are M3, totaling 4. The length of the fixed screws entering the power supply body should not exceed 3.5mm. Dimensions: length× width× height=140×59×30±0.5. Assembly Holes Dimensions- Power supply to be safe insulation, any side of the metal shell with the outside should be more than 8mm safe distance. If less than 8mm need to pad 1mm thickness above PVC sheet to strengthen the insulation.
- Safe use, to avoid contact with the heat sink, resulting in electric shock.
- PCB board mounting hole stud diameter not exceeding 8mm.
What is the MOQ? A: 1 piece is supported, Welcome you contact us for quotation. What is the payment item? A: The 30% deposit before production, balance payment 70% before delivery. What can you buy from us? LED display, LED module, LED power supply, video processor, receiving card, sending card, LED media player and so on. Can I have a sample order for led display? A: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable. What is the warranty for your led display? A: The standard warranty is 2years, while it is possible to extend the max. warranty to 5years with extra cost. How to maintenance led screen? A: In usually every year to maintenance led screen one time, clear the led mask, checking the cables connection, if any led screen modules fail, you can replace it with our spare modules. Q39. What is your minimum order quantity? A: In general, our minimum order quantity is 1 piece. But the larger the quantity, the greater the discount. What are the shipment terms and delivery times of your company? A: Delivery / production time is directly affected by the size of the order. Also, please be aware, some factories may not advise you, but after the production delays, you might be facing a few more days delays before catching your sea or your on-board flight departures. ( might be anywhere from 3 to 7 working days). Again, depending in which season you are shipping. How can we guarantee quality? A: Always a pre-production sample before mass production; Always final inspection before shipment. What is the function of sender card? A: It can transfer PC video signal into receiver card which make LED display work.