I have 2x 12v 1.5w panels charging a 17.5Ah lead acid and these panels look
exactly the same although the specs are 1.8w not 1.5w and I got mine in the UK not CA.
Mine are 1.5w not 1.8w.
They give out roughly 125mA at full capacity.
Open circuit voltage is 21v.
Built in blocking diode.
I use two connected in series when light levels are low although they work fine in series even when they are in bright light.
I use them in parrallel when there is bright sun and im there to swap them.
Remember mine might not be the same but from the picture they look identical.
Hope this helps.
