ThinkGrow by TrolMaster LED Bars: The Next Generation of Linear Lighting

ThinkGrow by TrolMaster LED bars are revolutionizing indoor grow lighting with their game-changing linear format. Unlike traditional panels, these bars provide ultra-uniform light distribution across the entire growing surface. This is exactly what you need to eliminate shaded areas and maximize the yield of every plant.

ThinkGrow is the lighting division of TrolMaster, the specialist in environmental control systems. They have poured all their technical expertise into these LED bars, combining energy efficiency with an optimized spectrum for all growth phases.

Why Choose ThinkGrow LED Bars

The bar format is where it truly differs from traditional panels. Light distribution is much more homogeneous – no more hot spots in the center and less illuminated areas on the sides. The diodes are spread across the entire length, allowing for a constant PPFD over the entire canopy.

In terms of spectrum, ThinkGrow has done an excellent job. Their bars integrate a full spectrum with peaks in deep red (660nm) and blue (450nm), plus far red (730nm) to stimulate cell elongation. The photonic efficiency exceeds 2.8 µmol/J, placing these bars at the top of the range in terms of energy output.

Heat dissipation is also a strong point. The linear design allows for better heat evacuation than compact panels. The result: less thermal stress for your plants and an extended LED lifespan (over 50,000 hours).

How to Choose Your ThinkGrow LED Bar

For an 80x80 cm tent, plan for between 200 and 300W depending on the desired intensity. Experienced growers often aim for 35-40W per square foot for maximum yield, but 25-30W is largely sufficient for good results without overheating.

The length of the bar should match your space. For an 80cm tent, a 60-70cm bar will be perfect. For a 120x120 cm space, opt for 100cm bars or a multi-bar system.

Also consider the hanging height. These bars can be lowered quite close to the canopy thanks to their low heat output – expect 30-40cm during vegetative growth and 20-30cm during flowering, depending on power. This is a huge advantage in confined spaces.

Dimming is almost essential. ThinkGrow models generally offer 0-10V or PWM control, compatible with TrolMaster controllers for perfect integration into an automated system.

Frequently Asked Questions

What is the ideal power for a ThinkGrow LED bar for an 80x80 cm tent?

For an 80x80 cm tent (0.64 m²), aim for between 200 and 280W depending on your goals. 200W provides approximately 31W/square foot, perfect for beginners or during warmer periods. 250-280W (39-44W/square foot) suits experienced growers who want to push yield to the maximum. The advantage of ThinkGrow bars is that they generate less heat than equivalent panels, so you can go a bit higher in power without temperature issues.

How far should I hang my ThinkGrow LED bar from the plants during the vegetative phase?

During vegetative growth, hang your ThinkGrow bar between 35 and 45 cm from the top of the plants, depending on the power. For a 200W bar, 35-40cm is sufficient. Above 250W, raise it to 40-45cm to avoid light stress. Monitor the leaves: if they curl upwards (tacoing), it means it's too close or too intense. The advantage of the bar format is that the light is better distributed, so there's less risk of burning even at a reduced distance.

Are ThinkGrow LED bars better than panels for uniform light distribution?

Frankly, yes, ThinkGrow bars offer much more uniform distribution than traditional panels. With a panel, you often have a hot spot in the center and less illuminated areas on the edges. Bars distribute the diodes along their entire length, resulting in a much more homogeneous PPFD. This is particularly evident in measurements: where a panel can vary by 30-40% between the center and edges, a well-positioned bar maintains differences of less than 15%. For SCROG or row cultivation, it's clearly superior.

How can I easily install a ThinkGrow LED bar in my indoor grow tent?

Installing a ThinkGrow bar is simpler than a heavy panel. Most models come with adjustable hanging cables and hooks suitable for standard tent poles. Attach the hooks to the ends of the bar, hang them on the crossbars of your tent, and adjust the height with the cables. Since the weight is distributed along the entire length, there's no risk of structural deformation. Just remember to leave 10-15cm of space above for ventilation, even though these bars generate little heat.

Do ThinkGrow LED bars need to be cleaned, and how can I ensure they last a long time?

Cleaning every 2-3 months significantly extends lifespan and maintains light efficiency. Turn off and let cool, then wipe the diodes with a slightly damp microfiber cloth to remove dust. Avoid harsh chemical cleaners. Also, check that the heat sinks are not obstructed – a soft brush will do the trick. With minimal maintenance, these bars easily achieve their advertised 50,000 hours. The most important thing is to maintain good ventilation in the tent to prevent heat and humidity buildup.