Very easy and quick installation on existing masts.Solar panel, battery, lamp and controller are in one unit. No extra components are required.Recommended for sunny regions, like Africa, desert countries, South America, Philipines.High brightness corresponds to 50 watt mercury light or 200 watt halogen light.This solar light is maintenance free - only the solar panel should be cleaned occasionally with water.General specifications:Lighted area: aprx. 15 x 8mDistance from pole to pole: aprx. 15 meterRecommended pole height: 3m - 5mAmbient temperature: -10°C ~ +65°CProtection degree: IP65 Protection class: III Low safe voltageEnergy efficiency class: A+++Approvals: CE, RoHS, WEEEGuarantee: 3 yearsAluminium alloy casing grey.Dimensions: 880 mm * 227mm * 64 mmLamp specifications:LED power: 20WLight colour: 4000K pure white (on request also 3000K warm white or 6000K daylight).No uv-radiation for reduced insects attractionLED efficiacy: > 120 lm/wLamp efficiacy: > 100 lm/wLuminous flux: > 2000 lmDimming lumens: > 300 lmCentral illumination: > 10 Lux (4m)Average illumination: > 6 Lux (4m)Life time: 40000 hoursMotion sensor: Day-Night sensor PIR motion sensorLighting angle: 120° wideDetecting distance: 7-10mSystem controler specifications:Microprocessor charge controler.Automatic lamp start at sunset and turn-off by dawn. (Level adjustable)Timer-dimmer: Full power at start-up, automatic dimming at late night and full power again in the early morning, for more safety at low battery capacity. Temperature feeded battery charging for extended battery life.Overcharge and deep-discharge protection for the battery.Solar panel specifications:High efficient monocrystalline silicone (tempered glass encapsulated)Efficiency: aprx. 17%Power: 20WBattery specifications:Battery type: Lithium Iron Phosphate, LiFePo4 batteryCapacity: 100.3WH maintenance-free, longlife,for solar cycling charge operationLifetime: about 8 Years / 20°CAutarkic backup for 2 nights at fully charged batteries. At absolutely no sunshine.Complete unit: Just to fix on any pole 80 - 100mm diameter.