4 Feet 8 Bulb fixtures are those huge lights that give off around 40000 (5000*8) lumens while consuming 432 Watts (54*8) and that means you will be able to grow huge plants under this fixture or just a lot of clones or seedlings. These 8 feet fixtures are amongst the most popular T5 grow lights as they combine very high energy output with efficiency and the ability to turn off some or all of those bulbs independently. Because T5 4 feet fixtures all use the same bulb standard you will be able to exchange those bulbs easily and create the optimums growing area for your green garden. Because these lights are so powerful they are usually used for commercial applications or for supplemental lighting in greenhouses when it is winter and plants cannot receive enough light to stay in their vegetative growth stage. T5 lights usually run for a rated lifespan of 20000 hours and that means you won’t need to exchange those bulbs that frequently and their relatively cool working conditions will not dramatically increase your grow room temperature like it is with Metal Halide and High Pressure Sodium grow lights.
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Hydrofarm EnviroGro 4 feet 8 bulb fixture
Hydrofarm 4 feet fixture is one of the most popular 8 bulb T5 grow lights out there with that simple but clever design, lightweight aluminum frame and specular aluminum reflectors. EviroGrow grow light line is well known for their performance and energy efficiency and this 4 feet fixtures is especially efficient as it consumes only 432 Watts and will give you 40000 lumen output. That is an amazing 92.5 lumen per watt efficiency and that means low heat output as well as lower bills for you to pay. This whole fixture is held together with 12 screws and it has two switches that allow you to work only half of the bulbs inside this light. This option can be used when you have 4 daylight and 4 warm white bulbs in there and you can switch half of them off for better plant growth at specific growth cycles. Hydrofarm has fitted this light with high strength metal hangers that will allow you to hang them overhead vertically or horizontally which means you will be able to provide light for your plants from any angle they like. There is also a 10 feet grounded cable that plugs into your regular 120 V electricity outlet. This light comes with included bulbs that have the 6500 K color temperature and that means they will work great for vegetative and seedling growth stages
LuxStar 4 feet 8 bulb Hydroponic grow light
LuxStar has created this 8 bulb monster to be one of the best fluorescent grow lights on the market with that pre-assembled state that only needs to be hanged and it is ready to grow! This High Output 4 feet T5 fixture have eight 3000 K flowering bulbs that each give off around 5000 lumens and thus create the same 40000 lumen output. LuxStar has fitted this fixture with amazing reflectors that will allow the bulbs to cool off but will also reflect 95% of the light that is shined on them so you will have 3 times more light shining downward and giving you better growth. LuxStar also states that this fixture has dual switches where each one is capable of turning on half of the bulbs. Another feature they mentioned is digital ballasts that make those bulbs efficient and will not draw any additional power. On both sides of this grow light there are louvers that allow them to stay cool and will not heat up your growing area that much but those top hooks will allow you to position this light in those regular positions that are overhead, horizontal and vertical.
New Wave HO 4 feet 8 bulb grow light
New Wave has created this fluorescent T5 fixture to be unique and have that unique triangle shape that is powerful but also cools those ballasts more effectively to prolong their lifespan and increase the overall fixture efficiency. This New Wave grow light is made from high strength Europian aluminum and the reflectors use specular aluminum finish that will reflect up to 95% of the total light output shined upon them. These reflectors are positioned in just the right angle to give amazing light spread but still keep the intensity and give your plants the best possible light that they can use. This New Wave fixture also runs on 120V of electricity and the power cord is included in the purchase. At the top there are two high strength wire hangers that will allow you to position this light in just the right angle you need but those ingenious louvers on both sides of this light will cool it off even better and will not allow any heat to build up underneath the fixture. New Wave grow light does not come with pre-installed bulbs so you will have to buy them separately but that gives you the ability to choose what best suits you’re growing conditions.
FluoroGrow Evergreen 4 feet 8 bulb fixture
Flurogrow has created this T5 grow light with the end user in mind as it has a lightweight all aluminum body and top of the line TR enhanced 95% reflectors underneath. This grow light has an unique body that is made from aluminum and is formed in a shape that has the optimal heat dissipation while still providing 91% total fixture efficiency. This grow light come pre-installed with 6500K bulbs that will be great for vegetative or flowering growth stages but are more suited for seedling and vegetative growth. There are also dual light switches that allow you to turn off half of those bulbs and you can also daisy chain these fixtures together so you don’t need to rewire your grow room if you want to expand it. This grow light was created as the most efficient light with Philips made ballasts and industrial strength housing so you can use this T5 light anywhere but because of those two top hangers you can also position it overhead vertically or horizontally. FluroGrow has done an amazing job with that build quality and the green finishing paint gives you added aesthetic feel that is a great bonus.
SunBlaze F54T5HO grow light
SunBlaze T5 4 feet 8 bulb fixture is the biggest T5 grow light from this company and that means they have incorporated everything from their smaller line lights in this fixture. SunBlaze is a T5 light that is made entirely from stainless steel powder coated with textured charcoal that makes it durable and very cool to look at. SunBlaze fits these 4 feet grow lights with 6500K bulbs that are meant for vegetative growth but you can exchange them afterward and put in any spectral output T5 4 feet bulbs you like and mix up the light output to create an even more full spectrum growth. These bulbs each consume 58 Watts so they are your typical T5 HO bulbs and together they produce 40000 lumens that will be enough for a small indoor garden or a couple of bigger plants. The housing also has 8 louvers on both sides and 4 louvers on the ends for better heat dissipation and prolonged ballast lifespan. Because of this SunBlaze offers 5 year warranty on the fixture itself and one year warranty on those 8 bulbs that are pre-installed. Like any other T5 grow light there are those dual switches and hangers at the top that will allow you to position this light in just the right angle your garden needs. SunBlaze has done a proper job with the manufacturing process and this is one of the cheapest 8 bulb 4 feet T5 grow light fixtures out there!
Hydrofarm Designed 4 feet 8 bulb fixture
Hydrofarm Designer line of fluorescent grow lights is the top of the line light system that incorporates high strength steel structure with specular aluminum reflectors. It gives off twice as much power as regular T5 NO (Normal Output) lights. This 4 feet 8 bulb grow light is powder coated in a brown color so it looks powerful and resilient but those louvers that are on both sides of this fixture are made for better heat dissipation. Hydrofarm has pre-fitted this fixture with eight 6400K grow bulbs that have the combined light output of 40000 lumens and because of those 95% reflectors almost all of that light will be directed toward your plants. Of course there are those dual switches as all modern T5 grow light fixtures have and at the top there are high strength hangers that will hold this light overhead or vertically giving you the freedom to choose the right light angle. This fixture is well designed and has a great build quality but if you need even more light you can buy a couple of these and daisy chain them together.
Quantum BadBoy T5 4 feet 8 bulb fixture
Quantum is another Hydrofarm product but this time it has its own brand and do not show that Hydrofarm logo. That makes this brand just like a separate company but it has the benefits of using all the engineering power and knowledge of more than 30 years of hydroponic grow light manufacturing. This BadBoy fixture is the top of the line light that has an amazing foldable design but still keeps that structural integrity. However, the best part is the light output. Quantum has fitted this grow light with top of the line bulbs as well as ballasts and they have even spaced out those reflectors and bulbs in just the right angle to give more intense light and better growth to your plants. Quantum is a premium brand so their lights are not cheap but when you get a BadBoy fixture you can be sure that the build quality, performance and design will be top of the line and you will also get a 3 year warranty that complements this statement. You can choose either from 2900K or 6500K bulbs and that is a great little feature as other grow lights simply have one bulb standard and you have to choose separate bulbs yourself.
I have seen where some companies that sell T5 replacement bulbs offer 95watt bulbs. Do you think I could use them in my LuxStar T5 system that came with 54watt bulbs?
From the wattage it seems like those 95 watt bulbs are VHO or Very High Output bulbs. If that is the case then I wouldn’t recommend you to use them with your LuxStar T5 system because that is a HO or hight output fixture and it is not compatible with VHO bulbs.