Upon receipt of the product, a light bulb was not working. This purchase was made on behalf of the French Federation of Alpine Clubs and Mountain. This kit was designed to illuminate a photo booth at one of our events. It is a pity that the product is able to fulfill its objective. We spent a considerable sum for this event. The result is a photo booth missed. Indeed, light on two is not enough to get quality pictures. Understand our frustration at the discovery of this dysfunction.