Eye Hortilux MH 250W E-Start Bulb for Vegetative Growth
The Hortilux E-Start Metal Halide runs 250W at 4250K with 21,500 lumens of output — a vegetative spectrum tuned for the early stages of plant development where compact node spacing and strong structural growth matter most. This lamp is specifically engineered for electronic and digital ballasts, not just compatible with them. The starting and operating characteristics of e-ballasts differ from traditional magnetic core-and-coil units, and Hortilux optimized this lamp's arc tube chemistry to take advantage of those differences for better performance over the lamp's life.
Extended Spectral Life and Ballast Compatibility for Veg Rooms
The E-Start design extends peak spectral output longer than standard MH lamps, meaning the quality of the blue-dominant spectrum holds consistent further into the burn cycle before degradation sets in. That translates to longer intervals between lamp replacements without sacrificing the spectral quality your veg room depends on. It can also run on pulse-start magnetic core-and-coil ballasts if needed, though it's built to shine on digital platforms. 100% lead-free construction and a requirement for enclosed fixtures only round out the design — plan your fixture setup accordingly.
Key Features
- 4250K Vegetative Spectrum: Delivers the blue-dominant daylight spectrum that promotes tight internodal spacing and strong structural development during early growth stages
- 21,500 Lumens Output: Pushes substantial light intensity from a 250W draw, keeping heat manageable while still driving vigorous vegetative growth in smaller canopy areas
- E-Start Digital Ballast Optimized: Arc tube chemistry is tuned for the starting and operating characteristics of electronic ballasts — not just compatible, but purpose-built for them
- Extended Peak Spectral Output: Maintains spectral quality longer than standard MH lamps, stretching the interval between replacements without losing veg spectrum performance
- 100% Lead-Free Construction: Environmentally conscious build with no lead content in the lamp assembly
Technical Specifications
| Specification | Value |
|---|---|
| Lamp Type | Metal Halide (MH) |
| Wattage | 250W |
| Color Temperature | 4250K |
| Lumens | 21,500 |
| Growth Phase | Vegetative |
| Ballast Compatibility | Electronic / Digital (also pulse-start magnetic) |
| Lead Content | 100% Lead-Free |
| Fixture Requirement | Enclosed Fixtures Only |