eMeD: An Experimental Study of an Autonomous Wearable System with Hybrid Energy Harvester for Internet of Medical Things

Table 2

Conversion efficiencies of the photovoltaic cell.

Lux	2000	4000	6000	8000	10000	12000
Lux in mW/m^2 conversion	15.8	31.6	47.4	63.2	79.0	94.8
Input power (mW/cm^2)	0.0608	0.1217	0.1825	0.2433	0.3042	0.3650
Output power (mW/cm^2)	0.0069	0.0156	0.0241	0.0324	0.0436	0.0482
Conversion efficiency	11.40	12.81	13.18	13.31	14.35	13.19