The wireless house number illumination. The light always shows your house number in the best light. And not just without cables, but also at no cost! This is because the light works just with the power of the sun, thus reducing your energy costs. Thanks to the photo-cell controller the lighting switches on at twilight. The light is fitted with a patented intelligent microprocessor control system and an extra-powerful lithium-iron-phosphate rechargeable battery which ensures light 365 days of the year. Including adhesive house numbers.