No Products in the Cart
visitors are currently viewing this product!
This item ships for FREE!
Estimated Time of Arrival: Delivery between
*ETA applies to shipping in the lower 48 states only Details
The HLG 550 V2 RSpec by Horticulture Lighting Group is a design upgrade of the 3000k HLG 550 V2, which is now discontinued. The spectrum of the RSpec version is 3500k whereas the HLG 550 V2 is offered at 4000k. There’s a little bit extra blue light in the R-Spec diodes. The additional blue spectrum helps mostly during vegetation but it’s also absorbed during flowering. This quantum board LED grow light still utilizes 1,152 LEDs (1088 of which are the top-bin Samsung LM301B LEDs), but HLG swapped in 64 Osram 660nm deep red diodes, spread out evenly among the four circuit boards. These diodes increase the electrical efficiency and the overall light spectrum. The extra red intensity also contributes to faster growth during the bloom stage. The HLG 550 V2 RSpec Full-Spectrum Quantum Board LED Grow Light is ideal for all growth phases – seedling through harvest.
The HLG 550 V2 RSpec quantum board is a large, white full-spectrum, modern design LED grow light that effectively covers a 4.5 foot by 4.5 foot grow space. Horticulture Lighting Group actually came up with the “quantum board” grow light design and started the trend among the indoor plant growing community. Quantum board LED panels are now one of the most popular grow light choices among the experienced growers. It’s basically four custom designed full-spectrum high efficiency white light QB288 quantum board panels combined on one fixture. The biggest advantage of the Horticulture Lighting Group quantum boards are the quality components. Chief among them are the Samsung and Osram LEDs and the Meanwell drivers. These high quality components are extremely efficient, delivering a high output, while consuming less power and generating less heat than almost every other light on the market.
If you’re curious, or just switching over from an HPS grow light, Horticulture Lighting Group equates the HLG 550 V2 RSpec to a single-ended 1000 watt HID grow light, while it will draw only 480 watts from your wall at maximum power. The Meanwell driver has a rubber stopper on the “Output” side, you can remove the rubber stopper and adjust the light intensity with a Philips screw driver. You can dim the HLG 550 V2 RSpec down by 50%, bringing it down to 240 watts of power consumption, which makes this LED grow light even more efficient, when you don’t need the full output!
The HLG 550 V2 RSpec doesn’t feature cooling fans or heat sink on the design. That’s because it doesn’t need them. Many commercial growers reported their HLG 550 V2 RSpec gives off “barely any heat.” For many of them, an oscillating fan is enough to manage temperatures while using this quantum board LED grow light.
One major advantage of the Quantum Board LED grow lights is the uniform photosynthetic photon flux density (PPFD) that doesn’t fade dramatically when you measure further from the center of the PPFD chart, which is the case for many “regular” LED grow lights. To understand better, let’s look at PPFD charts for the HLG 550 V2 RSpec quantum board panels:
As you can see, the coverage is much more even than most LED grow lights. Instead of sky-high PPFD readings in the center of the footprint and minuscule readings in the corners, the difference is not nearly as pronounced. But of course there is still a difference. That is unavoidable.
The reason for the even coverage is the size of the fixture. With a smaller fixture (like most competitors), light to the corners of the coverage area has to travel further, since it is coming from the center of the area. It loses much of its intensity by the time it reaches the canopy. With the larger HLG 550 V2 RSpec fixture, light does not have to travel nearly as far to reach the corners of the coverage area, since the large size of the fixture brings LED diodes much closer to the far corners. As a result, the light does not lose nearly as much of its intensity by the time it reaches the canopy.
Quatum Board QB288 Production Video:
Credits: Horticulture Lighting Group
Click on 'Add to Cart' to get yours today and start growing healthy and strong crops.
We aim to deliver your orders as quickly and affordably as possible. We (hereafter, "Zippy Grow, LLC") delivers within USA only. Deliveries can only be made to locations with a street address or rural route number with postal code. We cannot deliver to PO boxes.
To provide a bigger selection, we ship from warehouses all over the country. Some stock items can be shipped within a few days (5 -7 days). Other items require a longer time of 4-6 weeks.
We offer the following shipping conditions:
FREE ground shipping in the contiguous 48 states on orders over $99.
Shipping costs to the contiguous 48 states on orders under $99 are based on the fixed rate of $14.
We do not ship orders on the following US holidays:
As most items are shipped to you directly from the manufacturer, different items you purchase may be shipped from different original locations. Your items may arrive on different days and with different shipping methods if you purchase items from multiple brands or if you place more than one order at once.
IMPORTANT: COUNT AND CONFIRM THAT THE TOTAL BOXES YOUR RECEIVE MATCHES THE NUMBER ON YOUR WAYBILL BEFORE SIGNING!
Additional fees may apply for the following:
If you need help or have any additional questions, please do not hesitate and contact with us at firstname.lastname@example.org
If your order is stock and we process the charges to your credit card it will ship within five to seven business days from the date of your order. We will send you tracking information within 24 hours of your order leaving the warehouse to the e-mail address your provide when checking out.
We (hereafter, "Zippy Grow, LLC") work very hard to ensure that we offer the absolute best prices online. If you find another online store that offers a lower price then us within two months of your purchase date please let us know and we will refund your original payment for the difference. We want you to feel confident that you are getting the absolute best price for the product you are ordering. If you find that our own website has a lower price for the same item you have ordered within two months of your purchase date will refund the difference as well.
To request your partial refund simply e-mail us a link to the same product on our website, or on our competitors website within two months from the date of your order and we will process the credit accordingly.
Our 100% Price Guarantee has some limitations: