Damp Location Steel Combo Unit Nickel–Metal Hydride (NiMH) Combo Unit
Combo Unit
These exit signs are also equipped with additional emergency lighting. Check out all of our LED Combo Unit Exit SignsDamp Location
These items can be placed where they may be splashed with water. Typically they are safe to be used outdoors.Steel
Steel Exit SignsNickel–Metal Hydride (NiMH)
NiMH batteries can have two to three times the capacity of an equivalent size NiCd, and their energy density approaches that of a lithium-ion cell. Nickel–Metal Hydride batteries are good for high current drain applications because of their low internal resistance.
The disadvantage of NiMH batteries is their high rate of self-discharge. NiMH batteries typically lose 4% of their charge per day of storage. LSD NiMH batteries significantly lower self-discharge, but at the cost of lowering capacity by about 20%.