LEC 630W Lumatek Bulb – Double Ended CMH Grow Lamp

The LEC 630W Lumatek Bulb is the ultimate lighting upgrade for your indoor grow, delivering the intense penetration of a 1000W HPS system with significantly reduced heat output and energy consumption. This Double Ended (DE) ceramic metal halide lamp is engineered to provide a full light spectrum that mimics natural sunlight, ensuring your plants reach their maximum genetic potential in both yield and quality.

Why is your current lighting holding you back?

Problem: Are you tired of battling high temperatures in your grow tent and dreading the electricity bill every month? Many growers stick to old-school HPS lights, thinking they are the only way to get big yields, but they end up fighting heat stress that stunts plant growth and burns off delicate terpenes.

Agitation: There is nothing worse than pouring months of work into a crop only to end up with airy buds or a flat aroma because your lights were too hot or lacked the necessary UV spectrum. Sticking to outdated technology limits your efficiency and prevents you from achieving that "top-shelf" quality you see in dispensaries.

Solution: The LEC 630W Lumatek Bulb solves this by offering a superior PAR output with a balanced spectrum that includes UV-A and UV-B. It runs cooler, allowing you to manage your Climate Control much easier, and produces denser, frostier flowers while using less power than a 1000W sodium setup.

If you’re just starting out: how this product helps you

Entering the world of high-intensity lighting can be intimidating, but this Lumatek bulb makes the transition smooth. Because it emits less radiant heat than HPS, you have a larger margin for error regarding the distance between the light and your canopy, reducing the risk of burning your young plants.

It is designed to be "plug and play" with compatible 630W DE ballasts. You don't need to be a light engineer to get professional results; simply install the bulb (carefully!), turn it on, and watch your garden thrive under a light that looks natural to the human eye, making it easier to spot issues.

• Natural Color Rendering: The high CRI (Color Rendering Index) lets you see your plants in "true color," making it easy to spot pests or deficiencies early.
• Less Heat Stress: easier to maintain optimal temperatures in your Grow tents.
• Versatility: One bulb can handle a full cycle, though specific spectrums optimize specific phases.

If you already have experience: why it deserves a place in your kit

For the veteran grower, the Lumatek 630W DE is about refining quality. You know that yield isn't just about weight; it's about resin content and terpene profile. The inclusion of UV and Far Red spectrums in these CMH bulbs triggers the plant's natural defense mechanisms, resulting in increased trichome production.

The Double Ended technology ensures a more stable arc and longer life compared to single-ended bulbs. You get a higher micromole output per watt, meaning you are maximizing the efficiency of your electrical draw. It is the perfect tool to push your genetics to their absolute limit.

• Spectrum Options: Choose 3100K (Agro) for explosive flowering or 4200K (Daylight) for mother plants and vegetative growth.
• High PAR Output: Delivers 1268 µmol/s, penetrating deep into the canopy for solid lower buds.
• Longevity: Rated for 14,000 hours, maintaining intensity far longer than standard HPS bulbs.

Advantages and benefits for any level

• Double Ended Base (K12x30s): Provides better electrical contact and arc stability, which means consistent light intensity without flickering.
• Full Spectrum Light: Mimics the sun more closely than HPS or MH, which means healthier plants and more complex terpene profiles.
• High Efficiency (123 lm/W): Converts more electricity into usable light, which means lower bills for the same amount of yield.
• Reduced Heat Signature: Emits less infrared heat, which means savings on air conditioning and extraction equipment.
• UV-B Emission: Stimulates resin production, which means more potent and flavorful buds at harvest.
• Compatibility: Works with any 630W DE Electronic Ballasts, giving you flexibility in your hardware choices.

Typical mistakes this product helps you avoid

Even the best equipment can fail if used incorrectly. This bulb is robust, but treating it with care ensures you get the full 14,000-hour lifespan.

• Touching the glass: Oils from your skin can create hot spots that cause the bulb to burst. Solution: Always use a clean cloth or gloves when installing.
• Using the wrong ballast: Connecting this to a standard HPS ballast will not work and may be dangerous. Solution: Ensure you use a specific LEC/CMH 630W ballast.
• Ignoring burn-in time: Turning it off and on too quickly can damage the arc tube. Solution: Allow the bulb to run for at least 15 minutes before turning it off, and let it cool before restriking.

Frequently Asked Questions

What is the difference between the 3100K and 4200K models?

The 3100K (Agro) has a reddish spectrum ideal for flowering and boosting yields. The 4200K (Daylight) has more blue light, making it perfect for vegetative growth, mother plants, or mixed-use cycles.

Can I use this bulb in a standard HPS reflector?

Only if the reflector has Double Ended (DE) sockets (K12x30s). Standard E40 screw sockets are not compatible with this professional bulb.

How often should I replace my LEC bulb?

While they are rated for 14,000 hours, for maximum yield efficiency, we recommend changing them after about 4-5 full grow cycles (approx. 12-18 months of continuous use), as intensity drops slightly over time.

Does this bulb produce UV light?

Yes, CMH/LEC technology naturally produces UV-A and UV-B light, which is essential for trichome production and potency. Always wear protective eyewear when working under these lights.

Personal Experience of Pevgrow’s CEO (Alan)

If you ask me, the switch to LEC is one of the best decisions a grower can make today. I recommend the 4200K version to friends who want a low-maintenance mother room because the growth is super tight and bushy. However, for my own flowering tent, I swear by the 3100K. The way it brings out the resin in the last two weeks is something you just don't get with standard sodium lights. Plus, being able to see the plants in natural color without that orange HPS glare makes checking for bugs so much easier. It's a professional tool that pays for itself.