I can't comment on the quality of the lamps I purchased, as this can only be assessed after seeing how long they last. But the delivery service was excellent and must have been significantly subsidised by National Lamps as it was a next day courier service for the low P&P charge raised. . The lamps themselves were extremely well packaged with plenty of protection against transit breakages and the price paid for them significantly undercut the competition, hence the comment about quality being subject to usage. The lamps these ones will replace were equally cheap but had very poor longevity, so it will be interesting to see how this different manufacturer brand perform.