... persons allowed to do below operation2.Before assembly & maintenance, please make sure the power is cut off.3.Before connecting the ... about -10~+40°C7.In order to avoid shaking, Digital Ballast should be fixed well. Any falling can cause damage or ... many international fairs, communicated with many growers and counterparts like Philips, GE, EYE, GAVITA,LIGHTS INTERACTION.etc. Tokyo lightling fair ...