Cheap 6500K daylight LED shop lights or fluorescent tubes are a solid choice for the seedling stage, since the blue leaning spectrum keeps internodes tight and the low heat lets you hang them close. Full spectrum grow lights work too, but many are too intense for a sprout unless dimmed or raised above the tray. Measured growth under three seedling lamps, with distance and wattage noted, is compared on https://kushindicaseeds.com from a member's side by side run. Save the expensive lamp for veg and flower, where spectrum matters more.
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