• MET safety certified;Comply with UL 499;CSA C22.2 No.64
  • Multiple Uses - Perfect for Brewing and Heating your Kombucha, Kimchi & Yogurt. Simply wrap around or place under your container. Use Year around for Windowsill Herb Garden, Plant Propagation, Seed & Seedling Starting
  • Available in 4 sizes: Mini:3.5"x21", Watt: 7.3W ; Small: 10"x20", Watt: 17.5W ; Medium: 20"x20", Watt: 45W ; Large: 48"x20", Watt: 100W
  • Designing with waterproof construction, our seeding heat mat is safe for use indoor plantings,The new, stronger heating wire and thicker multi-layer construction offer more uniform heating and the durability to withstand rugged greenhouse environments.
  • The Seedfactor Seeding Heat Mat adopts the latest 7.5MM thickening,105 degrees of high temperature resistant cylindrical SJTW 5.9ft water-proof power cord (thicker than the general power cord, solid, high temperature resistant), safer and more durable, and guarantee the stability of seedling mat safety work.

Now that I've got it set up, it is working perfectly! I have 4 seeding trays (1020) on it and it is working very well. Ordering another soon!!

Here in the high desert the growing season can be relatively short depending on when we see our last potential frost in the spring. Getting a jump on it so we’re reading to plant as soon as the weather permits means chit early and get some sprouts started so there are some plants ready to drop in the ground. We were heating a space in a log cabin we have near our gardens but that pretty expensive for several months if the weather was unfavorable. We gave a heating pad a shot and now have several from different manufacturers because they work so well and pay for themselves in the first year of use. They keep the roots warm and that stimulates growth and we cover them at night to keep them warm and have them under LED grow lights 12-hours per day. It’s worked well so far and we’ll likely add a few more mats shortly. We have also used them (not sure if it was this one but they’re all about the same) to keep some yogurt culture at the right temp and have wrapped it around some potted plants (like our indoor orange trees) to keep the roots warm rather than turning on the heat. No complaints other than they could be a little larger because a roughly 10” x 20” mat fills up fast once you move onto some small pots. I went with 5-stars because they work, they’re cost effective and they eliminated what was once an expensive heating bill.

I got some tropical berry seeds. They need 75-85F temperatures to sprout - well above the 66F my house thermostat is set to for winter! I didn't need anything fancy, just something to fake a "tropical" environment. This mat was delivered quickly so my seeds (delivered already wet and intended for immediate planting) didn't die waiting for it, and it's been performing reliably 24/7 since. The seeds sprouted very quickly with the warmth, and they haven't gotten cooked. It has also entirely failed to set anything on fire (a big plus), and while it's not intended for getting soaked it has tolerated my oops- drips and splashes well. Affordable, plug-and-play easy to use, and does the job I need it to.

This mat is a good one! No thermostat needed as it's self regulating at a warm but not hot temperature that has helped keep the temperature of the soil and even jars of water I'm using for rooting cuttings in water. At stable and warmer temps, it has been very helpful in cool SF climate indoors. The mat is not so warm that it dries out the soil, but just enough to encourage rooting in soil and water- my prime interest in having the mat: getting cuttings to root!

These are keeping seeds warm and toasty in their flats in the greenhouse at night. Great not to have to worry about them not germinating. Update: seedlings germinated in less than half the usual time@

Pretty straightforward to use and is the same size as a tray for seeds. I have been starting seeds indoors a couple years now, and usually have 2-4 pots where no seeds germinate, and 3-4 stragglers that take much longer than the rest of the tray to show anything. I set this up about 10 days ago and only have 1 out of 18 pots looking like either a straggler or failure. Some of the seeds started in less than 3 days!

I got this for my baby Sulcata Tortoise during the winter, which she has to spend indoors. She loves it! Sprawls out on it all the time. Turned my other Tortoise friends on to it too. They were using heat lamps. The heat lamps were hiking up their electric bills, this pad does not.

I'm using this in an atypical way which I think is not recommended, but it works well. My cat kept drinking the water out of one of my aquariums, lowering the water level and making a mess. He wouldn't drink from his own or the dogs' water, so I bought him a fountain... but then, evidently the water was too cold. I put this mat under it (about a 1.25 gal fountain) and waited. It took about 24 hours to bring that volume of water up to a comfortable temp and he drinks from it now. I wouldn't recommend this if you have a cat that claws things up but it's working great for me. Now that the weather's warming up and it's planting season I may use it for what it's intended for! ;)

I purchased the 48" x 20" mat: MET certified Seedling Heat Mat, Seedfactor Waterproof Durable Germination Station Heat Mat, Warm Hydroponic Heating Pad for Indoor Home Gardening Seed Starter(48" x 20"). It arrived quickly and in excellent condition. As expected, the mat was rolled up for packaging - it flattened out nicely after I let it heat itself up for about an hour. I have various varieties of tomato and pepper seeds that I've started in 4" square pots in my basement (plus a bunch of bare-root strawberries that the nursery decided to ship on April 2nd ... to Colorado ... where the general guideline for putting plants outdoors is Mother's Day). The pots are sitting in plastic food service trays, 10 or 12 pots per tray, on a plastic table. The ambient temp in that part of the basement varies between about 65°F and 70°F, so the soil temp sits around 67°F. Way too cold for those seeds to germinate reliably. I put the mat between the table and the trays, then plugged it into a thermostat (VIVOSUN Digital Seedling Heat Mat Thermostat Controller 68-108℉). I set the thermostat to 80°F. Its probe indicated an initial soil temp of 67°F. Even through the trays and with the low ambient and starting soil temps, the mat raised the soil temp to 80°F in about 4 hours. The thermostat is cycling on/off as soil temp moves between 80° and 81°F, drawing the expected 100W when it's on. Of course, there's a substantial soil temp hit (and re-heat time) when I water the seedlings - I should probably use warmer water. I did not insulate the mat from the table, so there's some heat loss there - I can feel it on the underside of the table. I suspect performance might be a little better if I put some cardboard and/or styrofoam between the mat and the table. So far, I'm completely satisfied with this product. UPDATE 21 APR 2018: I tried increasing the target soil temp to 82°F via the thermostat. With ambient temp in the basement dropping down to 60°F overnight during a few days of cold weather, the mat was unable to keep up. It was on 100% of the time and couldn't get the soil even to 80°F. This was not unexpected, as the product description says it "warms root area 10-20°F over ambient temperature". I put some 1" styrofoam (packaging from some assemble-it-yourself furniture) between the mat and the table. The mat is now able to quickly raise the soil temp to 83°F while only on about 70% of the time. (Average duty cycle calculated from total kWh used, total hours elapsed, and 100W). I may also replace the plastic food service trays with aluminum half-sheet pans for better heat transfer between the mat and the pots.

Having spent a fortune over the years on annuals for my baskets and containers I decided to grow my own flowers this year. I’m very much a novice but research led me to this heat mat. It’s definately made a difference to my lobelia. The ones that didn’t fit on the mat haven’t germinated as quickly. I’ll be buying more of these.