The F20T12/D ALTO 30PK is a 20-watt T12 fluorescent tube designed for efficient, low-heat lighting that’s ideal for early-stage cannabis growth. Its balanced spectrum promotes healthy development during veg — making it perfect for seedlings, clones, and young plants in compact cultivation spaces. With a cool operating temperature that helps prevent heat stress and supports close-canopy placement — it's a reliable choice for home and small commercial growers alike, with a pack of 30 tubes that makes it well-suited for growers running multiple fixtures or larger propagation areas. It fits standard fluorescent fixtures, meaning installation is easy and it’s compatible with existing setups. Interested in a full-cycle lighting solution? The Production Module 3 gives you powerful, energy-efficient lighting optimized for both veg and flower stages. If you’re looking for something specifically for the flowering phase, the HPS Agro Plus 1000 1CT/12 delivers intense red-spectrum light that maximizes yields.