purchased the unit to try

Bought for coming to replace in a kitchen or there are 6 ceiling, I needed a powerful lighting. A little worried with regard to price, so I bought a 3Watts bulb and even 6Watts to see if they donneraientt compared to those already in place (compact fluorescent 7 Watts); much better result for consumption divided by more than 2 (7W bulbs with before - by 3W bulbs after). Compared to 6 W are purchased together the lighting is less white 3W but you need the eye. 6W therefore not useful.
Saw the result I ordered a bulb in May 2014 and I have recommended 10 late October.
A now see sustainability over a longer period.