Question 1

Hi will this run led decking lights

Accepted Answer

The short answer is probably not.  It would depend on your decking lights.  If they are solar then I assume you would not be asking the question so they are likely to be mains powered.   They may be low voltage 12v supplied by a transformer and you would need to modify the system to take  power from 12v from the battery.  You would need to know how to do this safely using the controller 12v output to provide proper protection.

Question 2

how much watts would this system be able to run 24/7 as i m looking to use in gardern to run output dc 9v 0.6A. Also what size inverter?

Accepted Answer

I don't think this system would run 9v 0.6A 24/7  - 365 days a year.  During bright summer days you may expect to get from 0.1A to 1.25A  at approx. 13v assuming a good static position.   As a very rough estimate lets assume 0.5A average over 12hrs into 13v Li Battery i.e. 0.5*12*13 = 78 Whrs.    Assuming a buck step down inverter from 13v to 9v is used and you are not proposing to stepping up to 240v to run a 9v mains power supply which would be less than 50% efficient you can expect a load of about 0.5A  on the battery at max output at 0.6A at 9v. (85% step down efficiency). For max 9v output that's a power requirement per day of 13*0.5*24 ie 156Whrs  which is twice the amount of solar power available so roughly half of dc output of 9v 0.6A ie 9v at 0.3A = 2.7W.   Of course this would be during the summer as winter draws in you can expect a lot less.  The battery can store about 105Whrs enough to easily provide the power over the longest nights the limiting factor is the solar energy which will some where between 15 and  195Whrs per day depending on time of year, position etc.
I am a little confused by referring to output  power and then asking about the inverter size.  I assumed in giving the answer as 2.7W as this is max power you might take from the inverter output to run 24/7 on a bright summer day.  If you meant you have a load with an input of 9v 0.6A then the answer is it will not run 24/7 most days of the year if at all.   Buck inverters are rated by current handling so you need one which will handle at least 1A (may be 2A depending on start up load)  and can convert 14v to 9v.

Question 3

is it possible to use the solar kit to connect and keep a motorcycle battery charged which is also fitted with sae lead?

Accepted Answer

I suppose so

Question 4

How to connect 8 x 120 volt pv panels in series for 24volt system ?

Accepted Answer

You need to rephrase your question, do you realise that connecting 8 x 120V PV panels in series will generate a dangerious voltage of 960 volts. I cannot see why you would want to connect that to a 24V system.

ASIN	B098JX25LW
Best Sellers Rank	1,424 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 9 in Monocrystalline Solar Panels
Brand	ECO-WORTHY
Connector Type	MC4
Country of Origin	China
Customer Reviews	4.4 4.4 out of 5 stars (180)
Efficiency	18%
Included Components	25 Watt Solar Module, Battery Clips with 2 m Extension Wire, Charge Regulator with USB Port, 8Ah LiFePO4 Battery
Item Highlight	25W solar panel+8Ah LiFePO4 battery+pwm controller. off-grid systems,chicken coops,automatic doors,water pumps,DC appliances
Manufacturer	ECO-WORTHY
Material	Monocrystalline Silicon
Maximum Power	25 Watts
Maximum Voltage	12 Volts
Model Number	L02M25X-CBWL08-1
Number of Items	5
Number of Packs	2
Output Voltage	18 Volts
Part Number	L02M25X-CBWL08-1
Special Features	Lithium battery

ECO-WORTHY 25W 12V Complete Solar Panel Kit with Battery for Off-Grid

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