Excellent price for the Brightgreen DR700. Cheapest that I could find elsewhere is $47. Ecovantage claim RRP of $55.
Postage appears to be a flat rate of $13.95 for NSW/Vic/Qld/Tas/SA and $15.95 for WA & NT. Collection available from Collingwood.
These run from 12 volts, GU5.3 base (MR16) i.e. it's a retrofit replacement for tungsten-halogen downlight lamps.
Note: retrofit LEDs are generally not as good as complete kits/fittings. The DR700 is not the most efficient LED around nor the brightest (but it is reasonably good in both respects). It would be, or very close to being, the brightest direct replacement GU5.3 12V LED lamp though. Changeover is a DIY task in most cases, assuming it fits in your existing fittings and is compatible with your transformer.
Manufacturer's product page: https://brightgreen.com/au/led-lights/dr700-retrofit-downlig...
Independent testing: http://www.ledbenchmark.com/display.php?id=94&name=Brightgre...