Sonlight HPS 400W is a high‑pressure sodium lamp for indoor flowering. The HPS‑TS Hyper Bloom model uses an E40 base and emits a warm 2000 K spectrum tailored to generative growth. Retailers list output around 60,000 lumens and a nominal service life of 28,000 hours. Physical dimensions are approximately 30 cm overall length and 4.8 cm bulb diameter. Recommended coverage is a 100 × 100 cm grow box when paired with a compatible 400 W HPS ballast and suitable reflector. Construction features include a polycrystalline alumina discharge tube and a sodium–mercury–xenon amalgam, with Son Light Power (SLP) design aimed at reducing early failures and maintaining lumen output over time. Use only with HID control gear matching the lamp’s wattage and E40 fitting.
