Size and weight of power supply actually been able to indicate the quality of the item itself. Typically, the large and heavy, the more reliable power supply has a good quality. Due to the capacitor is a good quality to have more weight than ordinary capacitors. But, indeed, the size and weight is always directly proportional to the pocket should you spend. Not forgetting also the material used, usually do not use the power supply unit made from non quality casing.
To the quality of the power supply itself, of course, your computer will be more durable. When the electricity coming into your power supply is not known, how your power supply can give a stable power to components? Confronted with the fact that electricity in some case is indeed notoriously unstable, ancillary support equipment such as Stabilizer, as well as UPS becomes inevitable. Where Stabilizer can add value by ensuring a stable AC current into your power supply, and also just in case during power ‘was not at will’ turn off the power in your area.
Not always Stabilizer and UPS also are required for your computer. Customize it with the needs, because in for personal computer, not all places have the power of unstable and frequent blackouts. A Stabilizer and UPS also has its own reputation, not that because you already have a Stabilizer, UPS, power supply means your computer is safe, because can be due to the quality Stabilizer + UPS itself is questionable bring bad results to your computer overall. And to avoid your computer damage later, I think you must be always the best power supply unit so that you can keep your computer safe.