The product was simple to use, click together and plug in. It glows with a faint orange light. We followed the instructions, and none of us were bitten, so excellent product. I was most impressed with the amazing service from this company. I was worried it might not arrive before my holiday, but they called me on a saturday am, after an email enquiry, and assured me they could dispatch immediately, and the product arrived on the Monday. Would certainly buy from this company again, without hesitation and would recommend strongly if they have a product you like.