Induction vs. Metal Halide (M/H)
Induction Lighting has a bulb life rating of up to 100,000 hours. ( up to 22.5 years/12 hour days) And not sensitive to operating position.
Metal Halide typically most bulbs are rated at 10,000 hours. (In the vertical position) Most bulbs are in the horizontal position and must be reduced in rating by approx. 20% (8000 hrs.).
Induction Lighting has slow lumen depreciation (light loss) and can maintain up to 70% of original lumens for 60,000 hours or more.
Metal Halide has a fast lumen depreciation (light loss) and can lose 5% of its lumens in the first 200 hours...and 20% lumen loss every 2000 hours (5-6 months) thereafter. Burning 400w of power but getting 200-225 watts of light at the end of year one. Not very efficient.
Induction Lighting is nearly maintenance free for the rated life of the bulb/ballast and has a 5 year warranty.
Metal Halide is high maintenance and has no known warranty.
Induction Lighting has an operating temperature of 120F to 165F degrees.
Metal Halide has a high operating temperature of 450F to as much as 900F degrees. This is a very costly (energy) A/C issue for indoor applications and really not good for any environment.
Induction Lighting has a high visual acuity ("seeable") lumens per watt of 190.
Metal Halide has a visual acuity lumen rating of 80 per watt.
Induction: Due to the high visual acuity lumens per watt, you can use a 150-165 watt induction bulb in lieu of a 400 watt metal halide. Highly energy efficient.
Metal Halide suffers with lower visual acuity lumens per watt, high wattage needs for adequate