One thing you should know about Malaysia: Most of the electrical sockets or outlets here, if not all, look like this.
These are the G-type sockets. They are also called British BS-1363 type. They usually come with a switch that you need to manually turn on and off which is something I like about it the most. So if your appliances' plugs do not match the shape of these receptacles, you will then need a travel adapter. Something I failed to bring.
I have a travel plug adapter back home, which is like universal that comes with a surge protector but I forgot to bring it with me. What was I thinking? I also miss to pack my camera's charger which actually cost me around 250 RM to buy a new one. But later I found out that what I got is not a real Canon charger. It's made in China, the same as the ones you can get from Divi in Manila except that this one is 10 times the price.
Being stupid and complacent really can be expensive.
