IDwiz is now building Solar and Backup "Trommels"

LED lights LED lights

The Solar Trommel is ideal for off-grid to run a TV and comes with a solar panel
The Backup Trommel is ideal for load shedding and can drive a TV or a computer

These devices make use of a Lithium Iron Phosphate (LiFePO4) battery. These batteries are far more reliable and have a much longer lifespan than the Lead Acid batteries traditionally used.
Both devices are supplied with a 12V DC lamp and have USB charger sockets to charge cellphones.

Solar Trommel Specifications
Backup Trommel Specifications
Lithium Iron Phosphate (LiFePO4) vs Sealed Lead Acid (SLA) batteries

Selwyn's solar system saves about 25% of the electricity bill:

LED lights

Selwyn has also changed all the lights in his house to LED lights. This has reduced his electricity bill by about 14 units per day, and about R500 per month.

LED lights pricelist