So just to be clear this is not ul approved and has not safety features , fuses or overheating safety? correct

I just received two of these heating mats. Yes! It is marked on each mat "UL approved"

Is it safe to plug it in indoors and use it outdoors?

You can use it indoors. A regular heating pad you buy at a drug store gets much warmer, so ya it's safe.

Is the plug safe for outdoor use?

if you mean can rain get in it, the answer would be no. However, i have this in use in my outdoor greenhouse, though covered by greenhouse plastic. if you are concerned about the weather, i found this thing at Home Depot by the Christmas lights. it is a hard plastic tube, that has a soft rubber on the ends, and is sliced in half lengthwise. you can put a plug down the middle, and close the tube around it making it pretty water tight. i bought several for areas around my farm with plugs that are outdoors. This would work if you are plugging into an extension cord. (My friend uses her heat mats on her covered patio. not a concern there either. but, if exposed to rainfall, I suggest looking for that cord cover i described above. (It is sturdy. not flimsy.)

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VIVOSUN 2 Pack Durable Waterproof Seedling Heat Mat 10" x 20.75" | UL & MET-Certified Warm Hydroponic Heating Pad for Germination, Indoor Gardening, Greenhouse

Product ID: 19488928

Details

Brand
VIVOSUN
Color
Black
Item Weight
0.65 Kilograms
Unit Count
2.0 Count
UPC
742920469658
Global Trade Identification Number

⚡20W energy efficient power

💧IP67 waterproof & easy clean

🔥68-86℉ optimal warmth

B/.114

Duties & taxes included

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Sold byAmazon PanamaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌱 Heat up your green thumb game with VIVOSUN’s pro-grade seedling mat!

ENERGY SMART HEATING - Operates at just 20 watts, saving electricity without compromising on performance.
PORTABLE USER FRIENDLY - Includes a handy carrying bag and a 5.7ft cord, perfect for flexible indoor gardening setups.
DURABLE WATERPROOF DESIGN - IP67-rated PVC surface resists moisture and allows effortless cleaning—built to last season after season.
ADVANCED FAR INFRARED TECH - Soft, uniform heat accelerates root growth while preventing scorching with double insulation layers.
CONSISTENT GERMINATION BOOST - Maintains ideal 68-86℉ temps for faster seed sprouting and cutting propagation.

The VIVOSUN 2 Pack Seedling Heat Mat delivers reliable, uniform warmth between 68-86℉ using advanced far-infrared technology. Crafted from durable, waterproof PVC with double insulation, it ensures safe root heating without scorching. Energy-efficient at 20W and UL & MET certified, this 10" x 20.75" mat fits standard trays and includes a carrying bag for easy portability—ideal for indoor gardeners seeking faster germination and healthier plants.

Specifications

ASIN	B015PD8I7I
Best Sellers Rank	#21,379 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #7 in Plant Heating Mats
Customer Reviews	4.7 4.7 out of 5 stars (8,109)
Item Weight	1.43 pounds
Item model number	39401
Manufacturer	VIVOSUN
Product Dimensions	1 x 1 x 1 inches

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