DC power supplies are very stable regulated S.M.P.S. Type DC power supplies having continuous adjustment of both output voltage & current levels with automatic constant voltage & current. These have 2 L.E.D., displays 1 each for voltage and current. Being S.M.P.S., type, they are of very less weight and radiate very little heat. Just as any other Linear Power Supply, these have full protection, fully variable outputs (both voltage & current), CV/CC modes and can also be connected in series / parallel. Most models have a built-in cooling fan to keep the whole unit cool. All other parameters are almost same as their Linear counterparts