We have some used refurbished HMI Silver Bullets 12/18k’ with a 1 Year CMC Warranty (pls see enclosed): They are “Reloaded” units meaning they have some replacement parts and are in full working condition. They vary in age but circa 1980’s or later models.
The CINEMILLS 12/18k HMI Fresnel is the workhorse of the industry. The fixture has an excellent reputation for quality and dependability, and is available with a 12/18k respective electronic ballast. The electronic igniter is designed to provide extremely quiet operation using either ballast. Other features include CINEMILLS revolutionary shock mount lamp socket system that is designed to maximize lamp life, a unique T-Handle designed to allow easy movement of the bale, and an optional locking diffusion ear.
An HMI lamp uses mercury vapour mixed with metal halides in a quartz-glass envelope, with two tungsten electrodes of medium arc separation. Unlike traditional lighting units using incandescent light bulbs, HMIs need electrical ballasts, which are separated from the head via a header cable, to limit current and supply the proper voltage. The lamp operates by creating an electrical arc between two electrodes within the bulb that excites the pressurized mercury vapour and metal halides, and provides very high light output with greater efficacy than incandescent lighting units. The efficiency advantage is near four fold, with approximately 85–108 lumens per watt of electricity. Unlike tungsten-halogen lamps where the halide gas is used to regenerate the filament and keep the evaporated tungsten from darkening, the mercury vapour and the metal halides in HMI lamps are what emit the light. The high CRI and color temperature are due to the specific lamp chemistries.
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| CMC lighting technician working on a refurbished light. |
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| CMC lighting technician replacing some parts inside a Silver Bullet. |
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