Powerful and safe - manufactured in Germany. Optionally with following light sources: 1) fluorescent lamp 15W - 900 lumen. Lifetime 8000 h, white light. The brightness is similar to 75w halogen light. 2) or fluorescent lamp 18W - 1200 lumen, Lifetime 12000 h, white light. The brightness is similar to 90w halogen light. 3) or with power LED lamp 15W - 1200 Lumen, Lifetime 40000 h, white light. The brightness is similar to 90w halogen light. 4) or sodium low pressure lamp LPS 18W - 1770 lumen. Lifetime 18000 h, yellow light. The brightness is similar to 120w halogen light. Solar Panel: 75W / 100W / 120W mono crystalline silicon (protecting glass, hail-proof) aprx. 25 years life duration. This modern module technology has a high degree of efficieny and allows charging also at cloudy weather. Solar battery: 12V maintenance-free power gel accumulator 12 volt. Life time: 5-8 years. Functions well under low temperature. Control: Microprocessor for automatic lamp start by light sensor, turn-off by dawn or by the adjustable timer, e.g. after. 8 hours. Over-charge and low-discharge protection for the battery. Pole: Steel hot-dip galvanized, height 500cm + 80cm for concreting. Rigid plastic case for inground-mount for the batteries, (walk-over). Size 360 x 260 x 320mm. Daily operation at dark-cloudy weather: a) Standard version: 1 day (16 hours) b) with extension kit autumn: 2 days (24 h) c) with extension kit winter: 4 days (40 h) Distance from pole to pole = Lighted area Ø aprx. 25 meter Ambient temperature: -35°C ~ +60°C Maintenance-free (only sometimes is the cleaning of the solar panel required). Included in the shipment: High-power battery, pole and lamp.