400w or 250w switchable Lumatek digital ballast MH/HPS

only used this for one grow, I do have other growing supplies, call or text for details.
The market`s most popular and best digital ballast. The Lumatek eballast is a performance leader.
Dimmable. Allows light brightness to be turned down, or turned up to the Super Lumens setting.
Multi-Wattage (read instructions before use). Ballast powers a 400 watt, or 250 watt bulb.
Operate both metal halide (MH) and high pressure sodium (HPS) lamps. No changes are required.
Up to 20% MORE LUMENS; faster growth, bigger harvests.
Unique graduated fin design for more efficient cooling. No cooling fan necessary means fewer moving parts.
3 years full + 2 years no hassle warranty.
Internal resin coating protects components for a long life.
External breaker system protects against power surges.
Generator compatible.
Cuts off when a short is detected. For ultimate safety.
Completely silent.
Comes with "S" style lamp cord outlet plug, connects to most hoods. It has two round holes and one flat one