*RDT-4 or RHT-2 Thermostat required
*2-Year Warranty and made from thick, flexible rubberized PVC in Phyto Blue
*Provides even, constant heat to root zone for flats and pots
*Designed for use on greenhouse benches or any flat surface
*Easy to install, economical to operate and portable
*Water-proof
*Mats come with a heavy duty 5' cord and plug for 120 volt AC current
*Will heat up to 120øF and will not trip GFCI