AVR Automatic Voltage Regulator manufacturer / supplier in China, offering Small Jacket Water Heater 500W 1000W 1500W 2000W 4000W 6000W Engine Pre Heater Block Heater TPS151gt10-000 Coolant Pre Heater Tank Heater, Forced Water Jack Heater Consists of Water Pump, Heating Element and Temperature Intelligent Control System 4500W 6000W 9000W 12000W, 24V03A-12V06A, Both 12VDC/ 24VDC Genset Diesel Generator Automatic Battery Charger Bac06A Dse9255 Dse9701 Bc2405 Dse9130 Dse9702 Bc1205 Bacm2420A 20A and so on.