I am considering buying downlights from Taobao, is there any electrical issues I should be aware of, like perhaps an adapter is needed, etc. Also, should I purchase normal downlights from Taobao and use Philips LED lightbulbs I can purchase in Singapore? I'm a bit worried about LED lights running out after a few years (my HTB has the tendency to "forget" to switch off the lights after using.) Lastly, can you purchase E27 LED lightbulbs in Singapore? Thank you in advance for your help.