SPIDER FARMER SF-4000 LED Grow Light 5'x5' Coverage Compatible with Samsung LM301B Diodes Dimmable Commercial Grow Lights for Indoor Plants Full Spectrum 3000K 5000K 660nm 760nm IR 1212pcs LEDs
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Questions & Answers
With the SF4000, you are able to work at 100V or less There is no need to change the plug and power cord, as long as you have a plug adapter available, you can convert the 277V
In short, yes. It will switch from a 110-volt to a 240-volt power supply.
If you are using 240V, it will draw about 2 amps. If you are using 120 volts, you will need about 4 amps
Selected User Reviews For SPIDER FARMER SF-4000 LED Grow Light 5'x5' Coverage Compatible with Samsung LM301B Diodes Dimmable Commercial Grow Lights for Indoor Plants Full Spectrum 3000K 5000K 660nm 760nm IR 1212pcs LEDs
I have no idea why it is taking so long.

I look for a board that offers a nice quantum experience at a fair price, and the SF4000 fits this description perfectly. It's nothing short of impressive right out of the box, and it's only the beginning. This light has built-in reds and blues for flowering, and yet it is a bright white full spectrum light, with no blurring. For indoor gardeners of any skill level, this is a fantastic light.

So far, it has been just as effective as my single ended 1000w MH for vegetative growth. There is no need to pay so much for HLG. It's so easy to order direct and save hundreds of dollars. I checked out the 450W lights, and they are indeed very nice! A friend of mine had a small medical garden that produced very high quality medicine. Notill beds that contain 91grams of energy per watt. A special strain called Pineapple Dreamwreck was selected from the following strains Blackberry Kush, GG4, 501st OG, and GG4.

A great heat dissipation system.
My plants really seem to enjoy this light, they are yielding more. During the limited time I have studied this light, I seem to have answered questions incorrectly due to lack of study. If you have questions regarding why the light works as it does, please do not hesitate to reach out to me. I have inserted my own gene edits into the plant. Here is a picture of it in week 3 of flower. A grow's need for these lights cannot be overstated.

This light is bright as F, very well built, and comes in very discreet packaging that's perfectly safe for the fixture to be protected. Using a dimmer switch with the light was not a problem. I contacted the company within 30 minutes about using a dimmer switch with the light, and they responded in a timely manner! As for this light, it generates some heat compared to many of my other lights, though its lack of built in heat sinks or fans is to be expected. Due to its SILENCE, this light can be used in any environment. Wednesday I'll update on how it grows, and might put it in a flower room to see if it compares with my other LED. I currently use KIND K5 lights and KIND veg bars in my rooms, and in comparison this fixture costs a third as much.

I received answers back to every email I sent to Spider Farmer in less than 24 hours, which was very encouraging. Light arrived right on time in a box with no labeling and came in a brown box. If you are going to store your light away for safety reasons, keep the box, because it is a snug custom fit. If you decide to store the light away, it will keep your light safe and sound. THE SPIDDER FARMER SF4000 GROW LIGHT IS AMAZING! It is made of top-quality components which mean that there are no sharp edges or rough spots on this product. And the light itself is shining brightly! After opening my new Spider Farmer grow light and hanging it in my grow tent, I was amazed with how fast it went together! My "unboxing video" is posted in this review so that you can see exactly what is in the box and how simple it is to get a Spider Farmer grow light on your garden wall. Having purchased from here so far, I could not be happier! Seeds will be planted this week and I will update this review as soon as possible.

I told him my lights were terrible. As I approached the end of my research after just purchasing my lights, I had gotten used to that fact. The light I chose is the result of extensive research. I don't think it is the cheapest nor the most expensive on the market either. The results are however extraordinary, and the evidence speaks for itself. I am pretty sure I leaned over and gave a high five to one of my plants as soon as I got the light installed and turned on )
Even though I've only had this light for less than a week, the impact it has had is profound. Currently, I am looking for a second one to purchase It is also worth mentioning that I had to work with their customer service as well. I didn't have any issues with the light, but I did have a separate problem with the Despite the time difference, Sunny reached out to me shortly thereafter and resolved my issue. His email also felt There is no doubt that I will be returning to Spider Farm in the future. These days, it is becoming increasingly difficult to match a great product with a great customer service. It has been a pleasure dealing with you, Sunny, and Spider Farms.

