Application:Wood pellet stove,wood pellet boiler,wood pellet burner, wood pellet grill,wood pellet furnace,wood pellet smoker Material:Hot Pressed Silicon Nitride Voltage:120V,230V Power:200W,250W,300W,350W,400W Silicon nitride body size:10.8x3.8x88mm Holder:alumina ceramic with SUS304 stainless steel or alumina ceramic Thread size:G3/8'' Lead Wire: 550℃ resistence(UL certified) ,length:as requested. CE and RoHS certified Advantage: 1)Very long life span,no breakage and no attenuation after 150000cycles of life testing 2)High efficiency,40s reach 1000℃ 3)Stable thermal function,no thermal and power attenuation,steady temperature 1100-1200℃. 4)High strength,toughness and hardness,anti-oxidation and anti-corrosion 5)CE and RoHS certified