I had often paid in the known auction house for 10 lamps 10 or such jokes. Goes well but you have to know that you then also have to change every two months, the lamps in these cheap things. That is why I have now times Quality bought and then stick to just what you promise. And the 15-35 min. (Depending on site), which have been bimonthly hand, if you had to replace the cheap lamps, significantly offset by the fair quality-charge!