... identify the good and bad quality of lighting products. LED AC lux double power meter Measures:1. ... consumption(calculated by 10 hrs/day)3. Equiped with different converter for E27, E14, B15, B22, ... , GU10, G9.Could test different bulbs with different bases. LED AC lux double power meter Features:1. ... Meter for LED CFL lamp with digital volt meter DC AC Lux Meter for LED CFL lamp with digital volt meter