Yes, but be careful that if the voltage of the battery is higher than the power supply, the power will flow from the battery
side to switching power supply and damage it. We suggest adding a blocking diode in series of the positive output to protect
the RP1050-XXSV. Also, be careful about the heat problem of this blocking diode. Moreover because charges time can make
 way closes the power source overload work and if model is using non fan then addition fan cooled need to be installed. If
it's fan cooled model then allow us to revise reduce the over-load protection spot to guarantee the product security.

No, you can not do this connection because RP1320-XXC doesn't operation. When two power supplies connecting in
parallel, the one with higher output voltage will share more loading and deliver more (even "all") power to the load
and cause these two power supplies unbalance. We suggest using RP1240D series that equip with the function of parallel
operation.

YES, basically you can do this alternative to get the right output voltage, but be careful that the rating output current of
the series system should be the rating of the minimum one in these series power supplies.

REIGN POWER's power supply can be used within this frequency range. But if the frequency is too low, the efficiency
will also be lower. For example, when a RP1320-24C is operated under 230VAC and rated load, if the frequency of AC
input is 60 Hz, the efficiency is around 84%; however, if the frequency of AC input reduces to 50 Hz, the efficiency will
be around 83.8%. Besides, if the frequency is too high, the power factor of the S.P.S. with PFC (power factor correction)
function will reduce and this also will cause higher leakage current. For example, when a RP1320-24C is operated under
230VAC and rated load, if the frequency of AC input is 60 Hz, the power factor is 0.95 and the leakage current is around
0.72mA; however, if the frequency of AC input increase to 440 Hz, the power factor will decrease to 0.78 and the leakage
current will rise to around 4.2mA.

In general there are two circumstances that the power supply will be shut down. The first one is the activation of
the over-load-protection (OLP). To deal with this situation, we suggest increasing the rating of the output power
or modifying the OLP point. The second one is the activation of over-temperature protection (OTP) when the
internal temperature reaches the pre-set value. All of these conditions will let the S.P.S. enter protection mode and
 shut down. After these conditions released, the S.P.S. will be back to normal.

Some models control the fan based on internal temperature to extend its lifetime. If the internal temperature does not
reach the preset value, the fan will remain steady until receiving the start up signal.

If you connect the S.P.S. to motors, lighting bulbs, or high capacitive loads, you will have a high output surge current
when you turn on the S.P.S. and this high surge current will cause the failure of start up. We suggest using S.P.S. with
constant current limiting protection to deal with these loads.

A. To increase the lifetime of the S.P.S., we suggest users choosing the model that has the rating of 30% more power than
 actual need. For example, if the system needs a 100W source, we suggest that users may choose a S.P.S. with 130W of
output power or more. By doing this, you can effectively boost the lifetime of the S.P.S. in your system.

B. We also need to consider about ambient temperature of the S.P.S. and whether there is additional equipment for
dissipating the heat. If the S.P.S. is working in a high temperature environment, we need to make some derating to the
output power. The derating curve of "ambient temperature" versus "output power" can be found on Reign Power's web site .

C. Choosing all kinds of function based on your application: Protection function: Over Voltage Protection (OVP),
Over Temperature Protection (OVP) Over Load Protection (OLP), etc. Application function: Signaling Function
(Power Good, Power Fail), Remote Control, Remote Sensing, etc Special function: Power Factor Correction (PFC),
Uninterruptible Power Supply (UPS) function.

D. Make sure that the model qualifies for the verification of safety standards and EMC regulations you need.

The switching power supply life cycle can be effect by the temperature and the fan conditions. Temperature condition
 is controlled by room temperature and power supply Leaves the gusty area is unobstructed or not. The other condition
 included the low wattage power supply will cause the temperature enhancement this will shorten the power supply life
cycle. As for Fan conditions besides the brand name of the fan effects the power supply life cycle also the dusts in the
environment will also reduce the power supply life cycle. Because the electrolysis electric capacitor is the life shortest in
all components of a power supply, it is very important to choose electrolysis electric capacitor for non fan power supply.

Normally we only ship S.P.S. WITH safety verification to Europe and North America . (European customers will ask
for CE mark while US customers will ask for UL mark.) If the customer did not request the safety marking, please
reconfirm the customer for this non-safety-verified S.P.S. to prevent the return in the future.

From Jan 1st , 2001 European Union officially has the detailed standard to the electronic installation overtone, to
stipulates above mains input 75W the electronic installation product, all has to pass [EN61000-3-2 (power line
harmonics)] the harmonic tests and this has became effective in all European unions countries to import into these
countries all need to match this standard. In China from May,2005 PFC regards as the standard function which the
electron provides.

It is safety standard certification. We also called it as SAFETY in short form. There are different standards of
switching power supply safety approvals and every country requires different standard of safety. Safety also has
different types for example USA is using UL, Canada is using CSA and TUV, VDE are used in Europe, other than
 these are CB is used in Australia, US and European markets, China is using CCC. Manufacture will have label of
safety stick on the each power supply enclosure for customers reference and to avoid forge. Simply speaking,
safety test is in normal and is not normal (any situation) the behavior in service down uses this product to test if
cause the damage to the human body (for example leakage or detonation and so on). Because power source in
use time can produce the heat generation P/S design is not only can create the system the injury but also cause
series damage to human bodies.

At input side, there will be an instant (1/2 ~1 cycle, ex. 1/120 ~ 1/60 seconds for 60 Hz AC source) large current
(20~ 60A based on the design of S.P.S., please refer to the spec. sheet) appears at the moment of power on and
then back to normal rating. This "Inrush Current" will appear every time you turn on the power. Although it will
not damage the power supply, we suggest you not to turn on/off the power supply very quickly in the short time.
Besides, if there are several power supplies turning on at the same time, the dispatching system of AC source may
shut off and go into protection mode because of the huge inrush current. It is suggested that these power supplies
should start up one by one or use the remote control function of S.P.S. to turn them on/off.

The harmonic is one kind of noise form. Basically is the frequency which becomes by the
compound 60 circulation sine wave combination creates. Power source supply to exchange
when the overtone can twist the basic sine wave, wave mode to have the distortion and also
can create the high electric current in the identical system power line.

Advantages of having PFC
A. can fully uses the power source the plant capacity
B. reduces the harmonic components
C. cut the peak power
The improvement power factor may the effective use electric power, also may reduce between the equipment to
penetrate the power line the disturbance.

POWER FACTOR CORRECTOR MEANS: The net load consumes power (REAL POWER)
with in ratio of the apparent power which LOADING POINT TO MEASURE Therefore the
power factor is higher (CLOSE TO 1) means the higher on behalf of the electric power use
factor the electric power then reduces the senseless loss in the transmission process.

For traditional power supply usage when power supply is faulty, the whole user's system is going down and shut off.
This usually causes the unremarkable business costs lost and data lost. To avoid and improve the reliability of power
supply itself, Reign Power in Taiwan has developed the redundant and Rdy signals functions Details

Power rating deification: (Actual rating) The consumption of Actual Loading and Loading terminal measuring ratio figure.

Therefore, Power factor rating increase (when reach closely 1) ,indicate the electrical
energy-efficiency is highly utilization, so reduce the unexpected lost during electricity transmission

1:The products that has energy conservation label must conform to the legal rules of energy conservation product.
besides , the most important thing is to choose appropriate power supply.
If the power supply could not comply with the required rules of Energy Conservation. Then the product could not be approved the Energy Conservation Certifications.
2:The Regulations of Energy Conservation there has ErP Standard in European and 80 Plus in America.
LP Din Rail series comply with these strict regulations.
We recommend you use LP Din Rail series that could make you keep up with the trends of Energy Conservation Environmental protection.