SUNMASTER SONT+ DS 250w

Description

SUNMASTER SONT+ DS 250W is the compact double-ended high-pressure sodium lamp for growers who want the benefits of DE technology — higher output consistency, better arc stability, and extended lamp life — in a smaller footprint suitable for compact tents and secondary growing spaces. We have been supplying Sunmaster lamps to UK growers since 2017 as a quality, well-priced HPS option that delivers consistent performance without the premium brand pricing of Philips or Gavita equivalents.

Double-Ended Technology at the 250W Level

The double-ended lamp format’s key advantage — maintaining arc tube geometry throughout the lamp’s service life by tensioning the arc between two connection points — is equally valuable at 250W as at 1000W. Single-ended 250W HPS lamps are particularly susceptible to arc sag due to the shorter, lighter arc tube construction, which causes output and spectral variation over the lamp’s lifetime. The DS format addresses this, producing more consistent PPFD delivery from week one through to replacement. At 250W the Sunmaster SONT+ DS is appropriate for growing areas from 60x60cm to 80x80cm, making it the ideal single-lamp solution for compact tents running one large plant or two to four smaller ones through a full flowering cycle.

Ballast and Reflector Requirements

The Sunmaster SONT+ DS 250W requires a compatible 250W DE digital ballast and a DE-rated reflector with the appropriate two-pin lamp connection. Verify compatibility with your specific ballast and reflector before purchase — not all 250W digital ballasts support the double-ended format. Maintain a minimum 40–50cm lamp-to-canopy distance for heat management at this power level. Replace annually or at 10,000 hours for consistent output. The compact DE format fits in most standard 250W reflectors that are rated for DE lamp use.

Pair the Sunmaster SONT+ DS 250W with a compatible 250W DE digital ballast and a compact DE reflector for a complete, efficient lighting solution for small grow tents and secondary flowering spaces.