LUMii Solar GRO 630W DE Lamp 4200K – 630W DE CMH Bulb

Daylight-quality light for tight, vigorous vegetative growth

The LUMii Solar GRO 630W DE Lamp is a double-ended ceramic discharge metal halide (CDM/CMH) lamp with a 4200K colour temperature, made for the LUMii Solar 630W DE fixture. Its broad, blue-rich spectrum sits far closer to natural sunlight than HPS, giving more usable PAR for young plants and vegetative growth. Rated at around 68,000 lumens, it is double jacketed for added safety and fits a K12x30s double-ended lampholder.

Key Benefits

• 4200K daylight spectrum - blue-weighted light for compact, well-branched plants in veg.
• Higher usable PAR than HPS - more of the output is light plants can use.
• 630W double-ended design - one lamp powering a full-size grow space from the LUMii Solar DE fixture.
• Double jacketed glass - an outer envelope for extra safety in the grow room.
• Around 68,000 lumens of full-spectrum output.

Stretch and Weak Stems in Veg?

Young plants grown under weak or red-heavy light reach for it: long gaps between nodes, thin stems and excessive stretch that carries on into flowering. A 4200K CMH lamp keeps vegetative growth tight and sturdy, so plants build a strong framework before the switch to flower. Run the warmer 3200K PRO lamp (sold separately) if you want one lamp for veg and flower.

How to Use

• Check the fitting: use it in a LUMii Solar 630W DE fixture or another fitting rated for a 630W double-ended CMH lamp with a K12x30s holder.
• Handle with care: switch off and let the old lamp cool; hold the new one by its ends with clean gloves or a cloth.
• Set the height: start high above the canopy and lower gradually, watching the tops of the plants for heat or bleaching.
• Replace on time: output falls with age, so swap lamps before growth slows.

Technical Specifications