The standard voltage in Singapore is 220V/240V, 50 Hz. If you have equipment that runs on a higher voltage, you should not connect it to Singaporean power unless you have the correct transformer (voltage adaptor).
Singapore uses the British BS1363 three-pronged square pin type socket. Plugs from the US, Western and Eastern Europe, and Asia will not fit into a Singapore power plug.
If you need a plug adaptor or transformer, we advise buying one before your arrival. Also, you can purchase on the duty-free shop on arrival or any 7-Eleven convenience stores (open 24/7), but you will pay extra for it.
Image Power Plug