Is this a full-spectrum grow light?

No. It is a red-finish T8 tube, so treat it as a supplemental or single-stage light. For full-cycle growing, pair it with white or blue light.

How many tubes do I need for a small grow tent?

At 18 W each, plan on several tubes to cover a small tent. One tube is enough for a seedling tray or a shelf of herbs.

It uses the T8 socket code, the same as standard T8 fluorescent tubes. Check that your fixture takes T8 tubes before buying.

GE rates it at 25,000 hours. That is roughly several years of typical daily shelf use.

It is better suited to vegetative growth and seedlings. Flowering plants usually need more intensity and a broader spectrum.

At Newegg, for $99.77, as of our latest check.

$99.77at NeweggChecked Nov 13

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