Magazine article American Cinematographer

The Lee 200 Strobe-Free Portable Hmi Light

Magazine article American Cinematographer

The Lee 200 Strobe-Free Portable Hmi Light

Article excerpt

An impressive portable 200-watt HMI light that can operate from battery pack, mains current or four standard automobile batteries connected in series is a versatile source for film and TV shooting

Shown at PHOTOKINA '78 to excellent reception was the LEE 200-Watt Strobe-free Portable HMI Light. This is an update of a unit that was originally introduced in 1975, but was discontinued because of the less expensive competition that prevailed at the time. Now, due to the pressures of demand, it is back in production.

The unit, with inverter/battery pack weighing 28 lbs., can be hand-held for portable newsgathering and documentary shooting, but is designed to be even more valuable for shooting in problem film and TV locations. Its compact design makes it ideal for use in automobiles, aircraft cockpits, buses, small watercraft, camera cars, etc.

The inverter requires 48-volt DC current, but the supply to the lamp head is at 2,000 Hz AC. Therefore, the light frequency is 4,000 Hz, with only a 10% fluctuation. Consequently, it is possible to use the lamp for filming at high or low speed without strobing.

The detachable Ni-Cad battery pack will operate the unit for 30 minutes with constant light transmission and color temperature. The Ni-Cad cells are protected by an automatic cut-out which is tripped when the charge has expired. Should the color temperature begin to drop, the unit will shut off automatically.

It is also possible to run the unit off four standard automobile batteries connected in series, by detaching the Ni-Cad battery pack and plugging the group of automobile batteries directly into the inverter. …

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