The EC135-90 is the perfect power supply for all of your Vertical protein gels–large and small. It's also great for multiple horizontal gels, and Mini-Blotting applications. This compact, highly versatile power supply is equipped with a unique holding voltage function. After a timed run, the user can set a low holding voltage, typically 10% of the running voltage, to prevent sample diffusion. This gives you more flexibility than other power supplies. You no longer have to watch the clock for the precise moment a run ends, and if you are busy when the timer goes off, it allows extra time before the gel is removed. • Designed to operate in constant voltage or constant current, with automatic crossover • Features a dual-function, 100-hour up/down timer • Four sets of output connectors enable you to run multiple chambers simultaneously • Features three digital displays for voltage, current and time • Use for your DNA or RNA submarine gels, PAGE and SDS-PAGE, and both small semi-dry and mini-tank style blotters