this seller sent the wrong item after talking at length about the product.
BEWARE!
after sending the wrong lamp (missing the required light, wiring and circuit shown in diagram) they then said I either have to keep them or pay the postage to have them sent back. they did not want to agree with resolution process and made everything extremely hard by stalling the process.
thank you for sorting Trade Assurance.
would not recommend or trade with this company ever again - only time on Alibaba I have ever had to initiate trade assurance.