Venture Lighting International

These quartz metal halide (MH) lamps contain two quartz arc tubes, extending the life of the lamp to 40,000 hours twice as long as standard probe-start MH lamps. With a lumen output of up to 114 lumens per watt, available wattages range from 70W to 875W. Typical CRI is 70, with options from 68 up to 90-plus and color temperatures between 3700K and 5000K. A medium screw (E26) or mogul (E39 and EX39) base, in a variety of bulb envelope shapes, are offered. Rated for both open and enclosed fixtures, operational positions include universal, vertical (plus or minus 15 degrees), base-up (plus or minus 15 degrees) and horizontal (plus or minus 75 degrees).