Solar LED floodlight questions

[treetops]

My place have started putting in these (actual picture) for overnight lighting, and from observation they're only lasting around 6 hours before packing in.  Battery full to battery empty if the 5 leds on the front panel are the battery monitor.

 

 

With a bit of help from Google I've tracked down some information but a lot of it seems contradictory, eg one source says the battery is 10,000 mAh for the 50W version and one says 4.5AH.  Can anyone tell me with any more accuracy what is actually being used and what should be expected from it?

 

Some information sources:

 

https://www.lazada.co.th/products/jd-jd-t-30w-t-50w-t-100w-t-200w-t-300w-jd-jindian-i2910613805-s11510074126.html?

 

https://estrexsolar.co.ke/?product=jd-solar-led-floodlight-50w-100w-200w-300w

 

https://www.damany.co.ke/product/jd-jindian-solar-floodlights-50w-jd-t50

 

[Crossy]

OK. these lights are generally rated as incandescent equavalent so they seem more powerful than they really are, a "50W" flood is more like 5W in reality.

 

The 50W unit has a 6W solar panel which would generate about 20Wh per day.

 

20Wh will run a 5W lamp for about 4 hours (which is pretty close to what you are seeing).

 

10,000mAh at 3.2V would be around 320Wh which, if real, would take that baby panel 16 days to charge!!

 

Something isn't adding up in the specs. but I'm afraid that at that price point ... 

 

You could try leaving the beast for a couple of days with the unit turned off via the remote so it doesn't light up at night to ensure whatever battery it has is fully charged.