This two cassette infrared dryer has 3 different model to suit different drying requirements.
B2EA is the most economic model with mechanical timer, features full baking and power adjustable function.
B2 is the stand model with pre-heating and full baking function;
B2S is the advanced model with pre-heating, full baking and with ultrasonic distance sensor for more precise curing.
Those all 3 models adopts infrared quartz tube, which life span up to 6000 hours under normal use.