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

Very happy with these heat mats. I broke the first one (my tray was leaky and I did not know it. It was soaked and stopped working). It initially did work well. I was far more careful with the second mat and it has made starting celery and pepper seeds so far a dream!

These heat mats are the best there is. I have bought more than two dozens in the past few years. They are still functioning as if new.

Definitely need to be used with a temp controller. Thought the 20 watts couldn't cook... I put mine on top of a thermo reflective insulation pad and measured the soil temp at 110°f. I lost quite a few expensive seeds.

I count on these for two things. Typically, I use these mats to help me speed up my garden seed germination (and they work like a dream). But I've also found myself using these beneath potted plants outdoors in freezing weather. You can cover trees/plants all you want, but if the roots freeze, you end up with something for next summer's compost pile. Bottom line: great product.

This is the second time I have purchased heat mats for my seeds in the greenhouse. Both of them have worked well and performed as advertised. They are durable and just the right size to fit on the shelves of my mini greenhouse and the one I built. The thermostat does very well and kept my seeds from being killed by the recent cold and frost. I recommend that anyone who wants to protect their plants, purchase these warming mats. But make sure that you get a thermostat regulator to maintain the proper heat on the plants.

Excellent mat for starting your seeds. Ordered twice because they work great.

I use these to heat floor for tortoise. Works great until he pulls on power cable. Doesn’t get too hot for him

EZ to use