1. Voltage/HzAC220V-50Hz DC220V 2. Light sourcefluorescent lamp Watts2* 21W /2* 28W/2* 35W 3.explosion proof fluorescent li explosion proof fluorescent light/explosion proof lighting/explosion proof lampBOZZ-8310Applications Applicable to petrochemistry, petroleum, shipping, petroleum drill platform, metallurgy, oil depot, explosion-proof on-site offices and on-site control room, chemical ...