Thursday, May 29, 2003 at 14:54
Arvo, you were right ...
techo@oatleyelectronics.com
Web Site:
http://www.oatleyelectronics.com
Email Address: sales@oatleyelectronics.com
Subject: Re: 12v LED lights
Rohan:
Yes correct except that the solar panel manufacturers cheat a little by quoting powers when the battery is warm (14V)...so tyhe current is a little less..
From:
To:
Subject: Re: 12v LED lights
Thanks xxx. So when you say the light can be run for 7 hours, you are only taking about using the charge from the solar panel (2 watt/12v = 0.167 amps; 0.167 amps x 5 hrs = 0.835 amps; 0.835 amps/.120 = 6.958 hrs), and none of the 7 amps already stored in the battery. On this basis, provided you get 5 hrs of sun each day, and don't need more that 7 hours of light (say 5:00 pm to midnight) you could run the light indefinitely without ever drawing on the battery's stored charge. A second light would obviously use the battery's charge (over 8 nights) unless you upgraded to the 4 watt
panel, in which case we're back to running indefinitely (given enough
sun).
I'm a fan of LED but not sure I want to build another from scratch and like the sound of these. How robust (or fragile) are the panels.
Regards
Rohan
techo@oatleyelectronics.com
To:
Subject: Re: 12v LED lights
Rohan:
The total current draw for the six strings (2 LED's/string) is 120mA.
From:
To:
Subject: 12v LED lights
From the information provided about the product, it appears the unit
_Affordable_Storage_Drawers.aspx 1.2 amps (or 100 mA for each of the 12 LEDs).
I can get a 12v 75 watt fluro that _Affordable_Storage_Drawers.aspx only 1.0 amp.
Regards
Rohan
Life just ain't that serious.
Rohan (
Sydney)
FollowupID:
13935