500 watt  Inverter with charger is ideal for:
1. One fan and one energy bulb or
2. One television and one energy bulb or
3. five energy saving bulbs or
4. One sound system and one energy bulb. CLICK HERE FOR COST PRICE

RECOMMENDED: BATTERIES: 12V  1-100AH 

1kva Inverter without charger is ideal for:
1. One fan
2. One television
3. Two energy saving bulb
4. One sound system. CLICK HERE FOR COST PRICE

RECOMMENDED: BATTERIES: 12V  2-100AH OR 2-200AH