Electric power in the Philippines may be confusing for those visiting, since the outlet is quite unique in that it can accept two forms of plugs: the American/Japanese Type A standard (2 flat, parallel pins with no ground pin), and also the European/Korean Type C standard (2 rounded pins).
Please be aware that there is a 220 V current at 60hz and not 100/110 V. What this means is that any appliances such as hair dryers from countries which use 100/110 V power (such as the US) are not usable and will break. Any equipment which uses a transformer, such as a laptop or phone charger, should be safe to use, just make sure to check the back of the equipment to verify it can accept a 220 V current.
Power cords with type A or C plugs which are rated at only 125 V should not be used due to safety concerns.
Due to the island’s density with hotels and guests, some brownouts can occur, rarely lasting up to an hour. Higher-end hotels may provide private generator service during said brownouts.