M4F5d meter and Sodium lamps
2,259 views · Published 15 August 2014 · 5:10 · Indexed 8 November 2026
Channel: RODALCO2007 · 2014 · Science & Technology
Argentinian made ABB Watthour meter Type M4F5d 20-80 Ampères 240 Volts 50 Hz 285 rev / kWh Electricity Meter High Pressure Sodium Lamp 150 Watt on 80 Watt ballast. first run was at twice the speed to shorten the video. Some tries were done with ND4 and ND8 filters. Second lamp was a 100 W HPS
