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Lumi Black Blade 100w
Original price was: £159.50.£119.99Current price is: £119.99. -
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Lumi Black Blade 200w
Original price was: £269.50.£215.00Current price is: £215.00. -
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Lumi Black Blade 400w
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Lumii XLED 720 LED
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Lumii Switch Blade 150w LED Fixture
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Lumii XLED Controller
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GORILLA 720W LED GEN-III
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Maxibright Varidrive 500w/1000w LED
£190.00 -
Maxibright Varidrive LED/HID Controller
£75.00
FAQs
Why is HPS lightning still popular in the UK despite the LED advances?
High-pressure sodium (HPS) lamps are still used in some UK greenhouses because they provide strong light output and produce radiant heat. Whether HPS or LED lighting is suitable depends on the crop, growing environment, energy costs and fixture specifications.
What is the difference between single-ended and double-ended HPS lamps?
Single-ended and double-ended HPS lamps have different fittings and operating requirements. Performance and service life vary by model, ballast and operating conditions; compare the manufacturer’s specifications for the exact lamps rather than assuming a fixed efficiency advantage.
Do I need a special ballast for HPS Lights?
Yes. An HPS lamp requires a compatible ballast to regulate the electrical supply. Check that the lamp, ballast and mains supply are compatible, and follow the manufacturer’s installation and electrical-safety instructions.
Which plant stage is best for HPS lights?
HPS lamps can be used for flowering and fruiting crops, but the best lighting depends on species, intensity, spectrum and heat management. Compare fixture specifications; no lamp type guarantees higher yields.
Can I use HPS lights for vegetative growth?
Yes, but they may cause plants to stretch compared to blue-spectrum lamps or LEDs. The lack of blue light makes them less ideal for vegetative growth.
How far should I hang HPS lights from my plant?
Hanging height depends on the lamp’s wattage, reflector, heat output and the plants being grown. Follow the fixture manufacturer’s stated minimum clearances and growing recommendations; a hand-temperature check alone does not establish a safe or suitable distance.
How often should I change my HPS bulbs?
HPS lamp service life and useful light output vary by model, ballast and operating conditions. Check the manufacturer’s rated lifetime and horticultural replacement guidance rather than assuming one fixed replacement interval.
How do I know if my HPS bulb is completely used up?
An exhausted high-pressure sodium bulb typically repeats a cycle at the end of its life that is turning on, running for a while, turning off and then restarting after cooling down. The other signs for this include a blackened end of the lamp or a clearly visible reduction in brightness and spectral quality.
Are HPS lights expensive to run in the UK?
Running costs depend on the complete system’s electrical draw, the number of hours used and your electricity tariff. To estimate the cost, multiply the system’s power in kilowatts by its operating hours and your tariff in £ per kWh. HPS lamps also produce heat, which may affect greenhouse heating and ventilation needs.
Can I use HPS in a small, enclosed space?
Yes, you can use HPS lights in small and enclosed spaces, but it is generally not recommended without proper investment in cooling and ventilation to manage the heat generated by HPS. For small spaces, LED grow lights are a better option. If you choose to proceed with HPS light, go for a 150W to 250W model rather than higher wattages, and do not forget to maintain the proper ventilation. These models are easily available at a reputable horticulture centre in the UK.
Can I run HPS Lights at 240V?
Check the specific lamp and ballast voltage requirements. UK mains supply is nominally 230 V, but not every lighting component connects directly to mains. Follow the manufacturer’s instructions.
How many hours a day should I light my HPS lights?
HPS lights are usually run for 12 to 18 hours a day, depending on the plant growth stage. For the flowering or fruiting plants, it is recommended to turn on for 12 hours and turn off for another 12 hours. Additionally, the vegetative growth requires 16 to 18 hours of light daily to maximise yield.
How many watts do I require for my grow room?
There is no single wattage requirement for every grow room. Choose a fixture using the manufacturer’s coverage area and PPFD information, alongside the crop’s lighting needs, the canopy size and the mounting height.
How long am I supposed to leave the lights on?
Daily lighting duration depends on the plant, growth stage and light intensity. There is no universal schedule for all indoor plants; follow species-specific guidance and use a suitable timer.
Why do I need LED lights for my grow room?
The LED lighting is important because they provide energy efficient, full-tailored spectrum light for photosynthesis while releasing minimal heat.
Are there specific types of LED lights that I need to use for my grow room?
When purchasing LED lighting, opt for grow lights that offer a tailored full spectrum and colours as well to promote plant growth.
What are the side effects of not having LED lights for my grow rooms?
The absence of LED lighting causes excess heat problems because traditional lights emit significant heat, higher energy costs because the traditional lights consume high amounts of electricity, and it also leads to increased risks of light burn.
How long do LED lights last?
LED grow-light lifespan varies by model, operating temperature and daily usage. Check the manufacturer’s rated lifetime in hours and warranty terms for the specific fixture.
What is the full spectrum of the LED grow lights?
Full-spectrum LED grow lights are designed to provide a range of wavelengths for plant growth, but the exact spectrum varies between fixtures. Some models include far-red or ultraviolet light and others do not. Check each product’s published spectrum before choosing a light.
Are LED grow lights better than HPS?
Generally, LED lights are more efficient and effective compared to HPS in terms of energy, the cost of the LED lights and spectrum.
What are the factors to consider when buying LED grow lights?
When buying LED grow lights, consider buying lights with a full spectrum, lights that provide uniform coverage area, lights that provide passive cooling for heat management and lights that have dimmers and timers. You can opt for the Lumi Black Blade 100W that offers excellent functionality.
How can I select the right size of LED grow lights?
Measure the growing area and match it to the LED manufacturer’s recommended coverage, PPFD map and mounting height. The light requirement depends on the crop and growth stage; wattage alone does not determine suitable coverage.
What is the electricity consumption of LED grow lights?
Generally, LED lights consume 100 to 300 watts for small to medium setups, and they can consume from 100 to 1000 watts for large commercial fixtures.
What is the best position for LED grow lights when installing?
When positioning the LED lights, ensure they are directly above the plants to achieve uniformity.
Can I use LED grow lights for all types of plants?
Yes, LED grow lights can be used for all plant types in grow rooms. They provide the full spectrum and controlled heat, which is ideal for the plants.
Are LED grow lights affordable?
LED grow-light prices vary with output, coverage, efficiency and brand. Compare the current prices shown on our UK product listings in pounds sterling (£), alongside each fixture’s specifications and warranty.
