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Dorm Grow LED - Frequently Asked Questions

Click here for: G8LED Grow Light Reviews Grow Journals

I just received my light but some of the diodes are not “on”, what’s the problem? This is the most frequently asked question from our customers. G8LED lights have infrared (IR) and ultraviolet (UV) diodes, which sometimes appear to not be on. The IR diodes are not visible to the human eye but are necessary for stem strength. The UV diodes increase trichome formation and are a dull blue color.

What is the correct distance to hang my G8LED Grow Light?  

Distance to hang G8LED Grow Lights  from the top of the plant canopy:

G8-240: 12-24inches              

G8-450: 16-30inches              

G8-600: 18-36inches              

G8-900: 20-42inches

As your plants grow and reach for the light, raise the light to keep the distance between the plants and light fairly constant. If you want the plants to stretch, continue raising the light as the plants grow. The plants will reach for the light source and grow taller. Stop raising the light when you do not want more length or when flowering. For shorter, bushier plants decrease the distance. If you keep the distance fixed, the plants will find an equilibrium height and grow wider and denser. If the light is too close it may be too intense and stunt growth and create discoloring.  Follow the recommended distances and adjust as necessary. The distance can be kept constant during flowering. The 90 Watt Red Flower Booster is added at the same level as the Veg/Flower lights when the light cycle is changed to 12-12. 

How many watts do I need to grow 6 plants? Which LED grow light should I use to grow 6 plants? The G8-450  is the smallest light needed for 6 plants for most growers, depending on how wide you let your plants grow. The G8-450 will cover a minimum of 12 square feet  (4feet x 3 feet) and greater of grow space. Add a 90 Watt Red Flower Booster when you want to start flowering. 

Can I use my full spectrum G8LED grow light for flowering? Yes! G8LED grow lights have been designed to be versatile and can be used for both vegetative growth AND flowering. One light will do both! Add a  90 Watt Red Flower Booster light next to your main panel at the start of flowering to increase the intensity, ratio of red wavelengths and get the maximum yield.

Does the 90W Red light need to be centered? No the 90W Red light does not have to be centered because it is a supplemental light to the full Spectrum G8LED Veg/Flower Grow Light. Keep your Veg/Flower Grow Light centered and add the 90W Red on the side, angled or on the wall.

What is the best way to use the BLOOM light? Use the G8-240 BLOOM or G8-450 BLOOM if you have separate veg and flowering areas and want a light for flowering only. The Veg/Flower lights can be used for both veg and flowering (with the addition of a 90 Watt Red Flower Booster). With the BLOOM Only light there is no need to add the 90 Watt Red Flower Boosters because it has a higher red ratio compared to the Veg/Flower lights. The BLOOM Only light can also be used alongside HPS bulbs to reduce total heat and energy consumption. A 450 Watt Veg/Flower light and one 90 Watt Red Flower Booster will have the same ratio as the 450 Bloom light, but will have more wattage, intensity and flowering power due to the addition of the 90W light. 

Do the lights come with hanging wires and power cord included? Yes

Do you offer discreet packaging? Yes. All orders are sent with very discreet packaging in unmarked brown boxes. The shipping label is sent from LED LIGHTING and is very discreet. The packages are customs friendly for all international orders.

How will the charge appear on my credit/debit card statement? When you make a purchase the charge will be from LED LIGHTING on your credit/debit card statement.

How can I protect my lights? Use a surge protected power strip or voltage regulator with your lights. Avoid connecting too many devices into the same power outlet. When operating your light make sure your grow room does not accumulate too much moisture to cause water droplets to form in the lights. The lights are electrical devices and should not get wet.

Do the lights work for 240V? Do you offer international shipping?  Yes the lights work in both 110V & 220/240V environments. The correct power cord will be provided based on your shipping address (US & Americas, UK, EU, AU). We have very good international shipping rates and you can get a shipping quote in your shopping cart before completing your check out.

How do I place an international order from outside the USA? For international orders you must check out via PayPal. If you do not have a PayPal account you will be able to check out with a bank card using the PayPal system.

How long does shipping take? In the USA delivery is 2-4 business days depending on your proximity to the West Coast. 

Canadian orders via UPS Standard are delivered within1 week and will have a customs brokerage charge paid directly to UPS upon delivery. Canadian order via USPS (United States Postal Service) will take 1-2 weeks and will be delivered to your local post office for final delivery to your address (no additional custom brokerage charge with USPS).

International orders via Fedex usually take 1-2 weeks and Fedex will deliver to your address. International orders via USPS (United States Postal Service) usually take 2-3 weeks. USPS will  deliver to your local post office for final delivery to your address. Minimal custom duties charges may apply to international orders and are paid to your local jurisdiction. 

Can I use LED grow lights with clones? Yes

Can I veg with HID and/or CFL and flower with LED? The optimal way to use LEDs is to have them in the grow room during both vegetative growth and flowering. If you introduce LEDs to your plants in the middle of their cycle, they will need a few weeks to acclimate to the source of energy and will not give the best yield possible. If you used a different light source during veg, include it along with the LED during flowering.  For best results, start and finish with LED grow lights. 

If I start vegging with LEDs can I flower with high pressure sodium (HPS) bulbs? Yes but it is best to start and finish with LEDs to take full advantage of the many benefits of growing with G8LED. Another option is to combine G8LED with HPS during flowering.

Are the lights made with 3Watt chips? Yes, all G8LED lights (except the 90 Watt Red Flower Booster) are made with 3 Watt chips. The 3 Watt chip is the ideal size for indoor plants up to 5 feet tall.  The 3 Watt chip is more stable and efficient for indoor growing than larger diode sizes. The 3Watt chip allows for a more dense network on the diodes board which gives more intensity per square inch of the light.

Why doesn't G8LED make grow lights with 5 Watt Diodes? The 5 Watt diodes give off significantly more heat and require larger spacing between diodes placed on the LED panel to avoid thermal breakdown. The result is bigger, bulkier, heavier and more expensive lights to do the same work.  The larger diodes do not allow for as dense of a network of diodes needed for Optimal growth. Bigger isn't always better when it comes to LED grow lights. Click here to compare 3 Watt vs 5 Watt diodes.

Do the lights have a Veg/Flower switch? LED grow lights with a Veg/Flower switch turn on/off the blue and red diodes, switchng back and forth between these settings. With this kind of a design only some diodes will be on at a given time. G8LED has designed the Optimal 8-band to work for both Veg AND Flower so the entire light, with 100% of the diodes can be used for both stages of growth, resulting in larger grow area coverage. The G8LED lights are used to their full capacity during both stages of growth and do not need to turn any diodes on or off.  Rather than turn red diodes on and off, the 90 Watt Red Flower Booster is added during flowering and is a perfect complement to the Veg/Flower lights. 

Add one 90 Watt Red Flower Booster for approximately 9 square feet (3’x3’) of grow area. 

Do the lights have dimmers? LED grow lights with dimmers do not maximize the emitted diode intensity for plant growth hence G8LED does not add them to their grow lights. To get the best coverage from your lights you should have them on at full brightness at all times. Dimming down the light change the light intensity not only results in less grow area coverage but also creates the opportunity for incorrect usage by not using the light consistently and methodically. Use the lights at full intensity and monitor your On and Off schedule to get the best coverage and results from your LED grow lights.

What are "optical" lenses and what do they do to the light emitted from the diodes? Optical lenses are plastic covers over the diode chip which concentrates the light to a smaller grow area in an attempt to penetrate further. G8LED does not use these lenses as they result in a loss of light intensity emitted from the diodes.  G8LED uses 3 Watt diodes which penetrate up to 60 inches and thus does not need to concentrate the light with plastic covers which cause the diode to lose 15% intensity due to refraction of the light.

Why is the actual power draw always less than the stated power draw? The stated power draw is the sum of all the diodes. For example, the 600 Watt light has 200 diodes at 3 Watts each. However, the actual power drawn by each diode is always less than 3 Watts and varies from 1.6-2.5 Watts depending on the wavelength of the diode. The diodes are not run to 100% capacity to protect them from thermal breakdown and increase their lifespan. The lower power draw also reduces the cost of electricity. 

Why do some LED companies not publish the actual power draw? Dorm Grow LED provides the actual wattage draw for each light on the product detail page. Some companies do not provide enough specifications regarding their products. Be careful of these companies and make sure you make a correct comparison when it looking for a LED grow light for your given grow space.

Is it better to get one G8-450 light or two G8-240 lights? The price and coverage area will be very similar with either one G8-450 light or two G8-240 lights. If your grow area is about twice as wide as long, then two of the smaller lights will cover this area better. If your grow area is closer in shape to a square, the larger light will be ideal for this setup.

DORM GROW LED