mercury lamp BT180 1000W high pressure mercury bulb high in luminous efficiency, long in service life mercury lampCharacteristic: High in luminous efficiency, long in service life, and fine in photochromismApplication: Suitable for indoor and outdoor lighting CodeTypeWattageSupply Voltage Luminous flux Avg life Base Max DiameterMax lengthBT1800904GGY10001000W220-240V525005000E40180mm290mm mercury ...