SolarMarkers Capacitor vs. Conventional Battery: Solar Powered Raised Pavement Markers, Solar Lighting Bricks or Tiles, Warning Lights and Chicane Bollards

SolarMarkers Capacitor VS. Conventional Battery

File	CAPACITOR	BATTERY
Workable Temperature	-40 ~ +80°C	-20 ~ +45°C
Life Span	100,000 cycles (274 years approx.)	2,000-3000 cycles (5-8 years approx.) * 3-5 years at the field
Charge & Discharge Efficiency / Example	0.90~0.95	0.70~0.85
Charge & Discharge Efficiency / Example	16 hours operation for 6 hours charge with 3,000 lux of illumination intensity	16 hours operation for 16 hours charge with 10,000 lux of illumination intensity
Chargeable Illumination Intensity	Almost of all weather conditions are chargeable	Higher than 10,000 lux approximately
Energy Density (Wh/kg)	1~10	20~100
Power Density (W/kg)	1,000~2,000	20~200
Capacity / Operation Period without charge	70~80mA / 16 hours	1,200~1,400mA / 100 hours
Maintenance	FREE and semi-permanent	To be replaced every 3-5 years period

Items in yellow highlight the main advantages of the Capacitor.