1. AC voltage 3V (60Hz), which is the distance between the electrodes, 40 m and 80 m, 60 m light emitting devices in current density, respectively, 9.9 m A m A m/c/c, 2 m 2, and 16.3 8.4 m A/c m 2 respectively, the brightness of the lights by 142cd/m2, 145cd/m2 and 105.9 c d/m 2.
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