Ultra Thin 25A Indoor LED Driver Power Supply 12V 300W Light Strip Light Box

Ultra Thin 12V 300W 25A LED Driver Light Strip Light Box LED Module Power Supply

Ultra thin 12V 300W 25A LED driver IP20 light strip light box LED module led transformer

• Ultra thin nature heat release type for line light light box signboard light application.
• AC/DC switching 12V 300W 25A single-switch LED driver
• AC input voltage: 170-250V
• 1600V High voltage test, full loading test and old aging test
• Application in LED light strip, light box, module, signboard light, line light, wall wash light, underground light, led tube and so on
• CE & RoHS approvals
• 3 Years Warranty
• Unit Size: 30.7*5.3*2.2CM
• Unit Weight: 371g

Description:

All these products adopt PWM high-frequency pulse width modulation technology, mature standardized production, strict 100% load-carrying aging, high and low voltage impact experiments and complete test records for development & production of LED driver through strictly quality control system and highly responsible attitude, thus have a good quality feedback during application.
Indoor drivers ultra thin types have 12V,24V series from 24W, 36W, 48W, 60W,100W,150W, 200W, 300W,400W etc. they are mainly used for LED strips light, light belt, LED module, light box or lamp house etc.

Specifications:

Ultra thin LED drivers 12V 24V related models list:

Applications:
Widely used in LED Lighting, LED display, LED strips, LED advertisement screen, LED sign, LED night light, LED lamp house, LED decoration, LED wall light, LED street light , LED wall light, LED backlight, LED tube, offices , hospital , schools , factories , plants, shopping malls, supermarkets, kitchen, fair cabinet and so on.





--About constant voltage (CV) and constant current (CC) power supply--
Constant voltage power supply is power circuit that controls output voltage at a constant level. It always provides a constant voltage regardless of the load and is widely used as power supply for electronic circuits.

Voltage and current sources can be equivalently converted to each other. When the voltage applied to the load and the current flowing through the load are the same, the voltage source can be equivalently converted into a current source that does the same work to the load, and the current source can be equivalently converted into a voltage source that does the same work to the load.

A power supply with a mechanism such as keeping V L and I L constant is called a DC regulated power supply.
Types of DC regulated power supply include "series regulated power supply", in which control circuits are inserted between the input and output to stabilize voltage and current, and "switching power supply", in which high-frequency stuttering is generated by rotating the input and then corrected for control stabilization

Test methods for switching power supply

1. withstand voltage testing

Definition: withstand the effective value of AC between specified terminals such as I/P-O/P, I/P-FG, O/P-FG, leakage current is generally allowed to be 10 MA and the time of 1 min.

1.2 Test conditions: Ta: 25 degrees Celsius; RH: indoor humidity.

1.3 Test circuit:

1.4 Description:

1.4.1 Voltage test is mainly to prevent electrical damage, through the input string of high voltage, affect the safety of users.

1.4.2 During the test, the voltage must be increased from 0V and reached the highest point within 1 minute.

1.4.3 Pay attention to the Timer setting of the tester when discharging, and switch the voltage back to 0V before OFF.

1.4.4 During the safety certification test, the transformer shall be separately measured. The temperature shall be 25 degrees Celsius, RH: 95 degrees Celsius, 48HR, and the transformer primary/secondary and primary /CORE shall be tested later.

1.4.5 Production line test time is 1 second.

2. Ripple noise (ripple noise voltage) testing

2.1 Definition:

Maximum (P-P) or effective value of the AC voltage component overlapped over DC output voltage.

2.2 Test conditions:

I/P: Nominal

O/P : Full Load

Ta: 25 ℃

2.3 Test circuit:

2.4 Test waveform:

2.5 Description:

2.5.1 The shorter the oscilloscope GND line, the better. The test line should be far away from the PUS.

2.5.2 Using a 1:1 Probe.

2.5.3 The Scope's BW is generally set at 20MHz, but it is better to set the BW to the maximum for the ripple noise of the current network products.

2.5.4 Noise and the use of the instrument, the environment is very different, so the test must indicate the test location.

2.5.5 Test ripple noise shall not exceed the original specification value +1%Vo.

3. Leakage current testing.

3.1 Definition:

Input the current flowing between the chassis (the chassis must be grounded).

3.2 Test conditions:

I/P: Vin Max) x 1.06 (TUV) / 60 hz

Vin max.(UL1012)/60Hz

O/P: No Load/Full Load

Ta: 25 ℃

3.3 Test circuit:

3.4 Description:

3.4.1 Both L and N need to be measured.

3.4.2 UL1012 R value is 1K5 and TUV R value is 2K/0. 15 uf.

3.4.3 Leakage current Specifications TUV: 3. 5 ma, UL1012:5 ma.