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    Multi-Vapor MVR 400 (HG) / R 400 - What is this bulb used for?

    Here are couple pics. Basically its Sun System, 175MH with Multi-Vapor MVR 400 /U (HG) / R400 Bulb. I am using it right now just for clones. Thanks.
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    Multi-Vapor MVR 400 (HG) / R 400 - What is this bulb used for?

    so these are for vegging for sure? not something I was looking but could be useful in the future projects. thanks.
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    Multi-Vapor MVR 400 (HG) / R 400 - What is this bulb used for?

    Yeah I got 6 of them. The ballast is attached to the frame. I was told they are for flowering. Here are the pictures. I thought that bulbs that are used for flowering produce yellow-red or light orange color light. This bulb is producing very clear white color light. (Kind of like HID...
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    Multi-Vapor MVR 400 (HG) / R 400 - What is this bulb used for?

    I am a total new, so I a sure some of my questions will be fairly stupid. Could anyone tell me what is the Multi-Vapor Bulb or if someone could tell me what this particular bulb is used for; Multi-Vapor MVR 400 (HG) / R 400. Any help would be greatly appreciated.
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