The Konstsmide set of 40 LED festoon lights have acrylic bulb sized outer casings in clear polycarbonate covering each LED with black cable. This fabulous set is not only nostalgic but highly practical too as they are suitable for indoor or outdoor use. IP44 rated so ideal for parties, barbeques or simply some external decoration. Although perfect for outdoor use its recommended to install plug in a covered/waterproof sealed socket. IP20 rated plug transformer. Must be connected to indoor plug socket or IP65 rated outdoor weatherproof socket Colour: Black, Clear Material: Plastic IP Rating: IP44 Power Source: IP20 rated plug transformer. Light Output: 3.2W, Amber Guarantee: 2 years guarantee. Dimensions: Overall - L 9.75 Metre