Pure Light HPS Grow-Bloom Max Bulb – Mixed Spectrum for Growth & Flowering

The Pure Light HPS Grow-Bloom Max Bulb is the mixed spectrum lighting solution that allows you to complete the entire cycle of your cannabis plants without changing lamps, guaranteeing explosive growth and heavy flowering at an unbeatable price.

Are you tired of spending double the money on different bulbs for growth and flowering, and having to swap them out right when your plants are most sensitive?

Constantly changing equipment not only hits your wallet but also increases the risk of breaking a hot bulb or stressing your crop. Plus, using cheap, generic lights often results in fluffy, airy flowers that just don't hit the mark.

The solution is the Pure Light HPS Grow-Bloom Max. Its dual spectrum technology (2100K) provides the necessary blue light for vigorous vegetative growth and the intense red/orange spectrum needed for fat, resinous buds, all in a single, reliable lamp.

The ultimate all-rounder for your indoor grow

This bulb is designed for the practical grower who wants professional results without the headache. By combining the spectrums, you ensure your Indoor Marijuana Seeds get exactly the light radiation they need from day one until harvest. It simplifies your setup while maximizing the lumen output per watt.

Whether you are running a compact tent or a larger room, this bulb integrates perfectly with your existing setup. It's the smart choice for those who prioritize efficiency and yield over complicated, expensive lighting systems.

Key features and benefits in a nutshell

• Mixed Spectrum (2100K): Covers the entire life cycle. You save money by not buying two separate bulbs and save time by not switching them.
• High Lumen Output: Up to 90,000 lumens (600W model) ensures deep light penetration, resulting in hard, dense buds even on lower branches.
• Universal Compatibility: Works with both magnetic and electronic ballasts, giving you total flexibility with your current gear.
• Cost-Effective: Offers premium performance at a budget-friendly price, freeing up cash for other Lighting Accessories or nutrients.
• Proven Technology: HPS remains the king of yield for a reason; it delivers the raw intensity plants love.

How to use it in a few steps

Installing and using the Pure Light HPS is straightforward, but safety always comes first when handling high-intensity discharge lamps.

1. Safety First: Ensure your ballast is unplugged and the reflector is cool. Never touch the glass of the bulb with your bare hands (the oils from your skin can cause it to burst). Use a clean cloth.
2. Installation: Screw the bulb firmly into the E40 socket of your reflector. Make sure it is secure but don't overtighten.
3. Operation: Connect your ballast to the timer and mains. Once fired up, allow the bulb to run for at least 15 minutes before turning it off to stabilize the gases.
4. Distance: Keep the light at an appropriate distance from your canopy (approx. 30-60cm depending on wattage) to avoid heat stress.

Frequently Asked Questions

Can I use this bulb for autoflowering plants?

Absolutely. The mixed spectrum is actually perfect for autoflowers, as they transition quickly and benefit from the full range of light throughout their short life cycle.

How often should I replace this bulb?

To maintain maximum efficiency and yield, we recommend replacing HPS bulbs every 3 to 4 crops (about 9-12 months of continuous use). After this, lumen output drops, and yields decrease.

Does this bulb generate a lot of heat?

Yes, HPS bulbs emit significant heat. It is highly recommended to use it with a cooltube or a good air extraction system to keep your grow room temperature optimal.

What is the difference between the wattages?

The 250W is great for small spaces (60x60cm), the 400W covers medium tents (100x100cm), and the 600W is the standard for 120x120cm spaces, offering the highest lumen-to-watt efficiency.

Personal Experience of Pevgrow’s CEO (Alan)

I've tested countless lighting setups over the years, from the latest LEDs to old-school ceramics. But honestly, when I want guaranteed weight on the scale without overcomplicating my life, I still reach for a good HPS like the Pure Light. There is something about that intense penetration that just fattens up the lower flowers in a way that's hard to beat at this price point.

For me, the Pure Light Grow-Bloom Max is the "workhorse" of the catalog. I use the 600W version for my winter grows because the extra heat actually helps maintain the room temperature, and the mixed spectrum means I can just set the timer and forget about swapping bulbs. It's reliable, cheap, and it gets the job done every single time.