Transformerless 6 v power supply

Does anybody have a schematic or can point me in the right direction to construct a 6 v dc power supply that does not need a transformer. I need to power a small dc halogen lamp and the current requirement is approx 30 watts.
Thanks in advance
arrakis2508

Heres a similer thread:

https://www.electro-tech-online.com/threads/enamel-coated-magnet-wire-hook-up-wire.1929/#post-9522