This is a test of various fluorescent lamps running off of one of my inverters (400W Black and Decker). Compact fluorescent lamps often do not like running off modified square wave (not modified sine wave; that looks more like a bunch of alternating stepped pyramids) inverters because of the fast electrical potential rise time. This causes a current spike which can cause premature diode failure in the graetz bridge in the CFL ballast front end or ballast input smoothing capacitor damage. These spikes can also damage the MOSFET H bridge in the inverter if enough lamps are powered by same. NOTES: After this video was taken, the Osram lamp started strobing/flickering. This was due to an intermittent contact in the fixture switch. Also, these are called lamps, not light bulbs.
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