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 Durable Waterproof Seedling Heat Mat Warm Hydroponic Heating Pad 2-Pack 10"*20" Heat Mat

VIVOSUN Durable Waterproof Seedling Heat Mat Warm Hydroponic Heating Pad 2-Pack 10"*20" Heat Mat

Product ID: 307230576

Details

Brand
VIVOSUN
Item weight
0.65 Kilograms
Unit count
2.0 Count
UPC
742920469658
Global Trade Identification Number

⚡20W energy efficient

💧IP67 waterproof surface

🌡️20–30°C constant temp

Description

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

INFRARED INNOVATION - Far-infrared tech heats up to 40°C quickly, optimizing root health and growth speed
PLUG PLAY VERSATILITY - Fits standard 10x20 trays with a 1.8m cable, perfect for hydroponics and indoor gardening
WATERPROOF EASY CLEAN - IP67 rated surface ensures mess-free maintenance and longevity
BUILT TO LAST BUILT TO PERFORM - Durable PVC with MET safety certification for worry-free indoor use
CONSISTENT WARMTH CONSISTENT GROWTH - Maintains ideal 20–30°C for rapid seedling germination

The VIVOSUN Durable Waterproof Seedling Heat Mat 2-Pack offers professional-grade, energy-efficient heating with a stable 20–30°C range, ideal for accelerating seed germination and propagation. Featuring far-infrared technology, a waterproof IP67 surface, and MET safety certification, these mats are designed for versatile indoor gardening and hydroponic setups, ensuring reliable, long-lasting performance.

Specifications

ASIN	B015PD8I7I
Best Sellers Rank	177,547 in Garden ( See Top 100 in Garden ) 79 in Plant Heating Mats
Customer Reviews	4.6 4.6 out of 5 stars (9,186)
Date First Available	1 Jan. 2024
Guaranteed software updates until	unknown
Item display height	6 centimetres
Item display length	28 centimetres
Item display width	6 centimetres
Item model number	39401
Manufacturer	VIVOSUN
Part number	PD-33334
Product Dimensions	2.54 x 2.54 x 2.54 cm; 650 g

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