0.334 x 7.3kwh = RM2.44



To run a 200w led light for 12hr daily, require

200w x 12hr = 2.4kwhr/day

You need 507Ah battery ( discharge to 50%)

And 624kw of solar panel.

Not worth to install.

The specification look not realistic.

1) solar charging time too long. Not able to charge full perday.
2) battery bank not enough solar panel capacity to charge it full daily. Slowly deplete and kong.
3) 45w/6v Panel?

The spec look scam to me.

This post has been edited by ozak: Jun 17 2020, 01:52 PM

Don't underestimate the small amount permonth.

When a little bit here and there adds up, the bill is shocking.

Many people don't understand why their bill so high. When think didn't use much the appliance.

Depend the quality panel.

Generally 4kw panel cost RM11k.

* Sorry my mistake. It should be 624watt panel. Not 624kw. Under 1kw panel. Get 3pcs 250watt panel is sufficient.

This post has been edited by ozak: Jun 18 2020, 10:35 AM

2500/30 = 83L/watt.

2100/20 = 105L/watt

Look like Philip more efficiency per watt lumens deliver.

My office is using ecofit for 3yrs already. Not much lumens reduce.

My home also using ecofit. Replace the old T8. Lumens reduce to compare.

delete.

This post has been edited by ozak: May 18 2021, 08:52 AM

8hr run with aircon.

My home dinning and work room also using ecofit. no aircon. About 3yrs too.

This post has been edited by ozak: May 18 2021, 12:10 PM