Before entering into a discussion as to why electronic ballasts are superior on the old-fashioned magnetic core and coil types, it may be helpful to know exactly what a ballast system is existing position . hydroponic gardening and grow lights.
All standard grow lights used in hydroponic gardening - whether some type of metal vapor or fluorescent - use a ballast system. This consists of housing, within tend to be contained electronic components that in essence 'prime the exhort.' A fluorescent light has its own built-in ballast system; this builds inside energy required to activate the molecules inside the fluorescent tube, which consequently causes them to glow, emitting light. Metal Halide and HPS grow lights have 'remote ballasts' which are housed inside a metal container. The components are what support these lamps' main power supply. Together, they function as a 'pre-heater,' which allows electrical power to produce to the point that the lamp will run.
The drawback associated with kinds of ballasts is that they build up the energy required to run the lamp, then sends it on all at once. The cold bulb is literally 'slammed' with energy at full force. An outstanding metaphor is the situation of someone who puts a car in gear, disengages the clutch, revs the engine up to 4000 RPM then 'pops' the clutch. 'Pealing out' may be fun and impressive to onlookers (though illegal generally in most places), but because automotive technician will inform you, can shorten the car's engine and drive train considerably.
It is exact same way with standard ballasts; the sudden rush of electricity tends to shorten bulb lifestyles. In addition, standard coil-type ballasts result in the bulb to 'strobe,' or flicker. Digital ballasts eliminate this wear and tear on the bulb by providing a flow of electricity that starts out at a low level, then increases energy flow whilst the bulb warms up and achieves full brightness. Studies proven that MH and LPS grow lights used with are just looking for ballast lost only 20 to 25% of their PAR luminescence (the wavelengths actually used in the plant) after one year; those utilized on a standard ballast had lost over twice at much over the same period.
It should be noted that digital ballasts vary in terms of quality and excellence. In general, products made in Chinese factories tend end up being of inferior quality, and should be avoided. The best digital ballasts will run all epidermis grow lights, and then recognize the distinction between metal halide, HPS or LED. In case the bulb is defective, damaged or incompatible, or if a new circuit is detected a well-manufactured, You.S.- made electronic ballast will automatically shutdown before a safety hazard is done.