· Green LED indicates CV mode, red led indicates cc mode
· Uses Toroidal Transformers
· Thermal cutoff is indicated by yellow led
· Separate digital panel meters for voltage & current indication
· Input overload protection by inline input slow blow fuse.
  (Circuit breaker in model 3635)
· Built in E. M. I. line filter
· Separate coarse and fine control for voltage and current
· Forced air-cooling.
  (Two speed fan control - except model 3610, Single speed)
· Presettable output Current Limit
· Output off indication by yellow LED
· Power on indication by red led
· Readings measured at the root of terminal
· Conforming to UL norms