Induction grow lights are taking the grow world by storm. One reason induction grow lights are becoming quite popular is due to the fact that they can last up to 100,000 hours on a single bulb due to the fact that, unlike most types of fluorescent grow lights, induction grow lights do not use electrodes to excite the contained gas as a conventional fluorescent light would. This electrode-less design allows a completely sealed bulb that will last for years and years. Best of all, this electrode-less design results in a light that doesn't suffer nearly as much from the lumen depreciation that you'll see over time with other types of grow lights.
Induction grow lamps are offered in a number of wattages and spectrums to accommodate both vegetative growth and flowering for small and large grows alike.