These lights feature a warm white SMD (surface mounted device) LED (light emitting diode) that produces four lumens of light output. This kit includes a polycrystalline solar panel and a rechargeable Ni-MH battery to charge the light using the sun's rays. Enjoy up to eight hours of runtime on a full charge. Solar power means there is no need to hassle with power cords and electrical outlets. These lights are ideal for use on decks or fencing to illuminate a desired area.