To avoid personal injury and/or possible product damage, the following cautions must be followed: To prevent electrical shock turn off power before inspection, installation, or removal. To prevent early lamp failure, lamp should only be installed in operating environments ranging between: -4 degrees F and +104 degrees F (-20 degrees C and +40 degrees C). Suitable for damp locations - Not for use where directly exposed to water. Not for use in totally enclosed luminaires. Not for use in emergency light fixtures or exit signs.