It is designed for sodium lamp, mercury lamp and halogen lamp electrical ballast&meets inter/national standard toward ele ... harmonic and 0-50 harmonic components.2. Output: Lamp voltage, lamp current(10A), lamp power, crest factor and oscillatory frequency3. Startup: ... of input voltage, current, power, output lamp voltage, lamp current and lamp power from 0-10 minutes4. Accuracy: input:(+-0.4% reading ...