In reading up on the electricity that is offered in the Philippines, I see that I should expect 220V, 60HZ, type A,B,C.
I have an authentic Apple World Travel Adapter Kit. On my trip I'm thinking of taking the following pieces from the kit:
Type A plug, labelled on-unit "2.5A 250V" and Type C plug, labelled on-unit "2.5A 250V 50HZ" (thin-rounded)
The kit also provides:
Type C plug, labelled on-unit "2.5A 250V" (thick-rounded)
My primary concern is the 50HZ vs unlabelled HZ between the Type C plugs. While I also can bring both, I'm wondering is there is a definitive answer to which of the Type C plugs is more appropriate and safer for my device (whether the hertz difference is a concern)?
Specifically, I am using a 2015 Macbook Pro with the authentic power supply.