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 lighting, high maintenance, high and quick lumen loss and sensitivity to operating position.
Induction Lighting has a high CRI (color rendering index) of 90+. Improving vision recognition.
Metal Halide has a CRI of 65.
Induction Lighting has a consistant crisp blue-white light throughout it's lifespan.Metal Halide experiences color shifting as it quickly ages. It can be seen turning pink and gray.
Induction Lighting is instant-on and instant re-strike. Eliminating warm up periods.
Metal Halide has a 10 minute warm up period.
Induction Lighting is better for the environment using a solid amalgam (dental mercury form) of only 1.5-6.5 mg. which can be easily handled and recylcled as well as all other parts of the light.
Metal Halide uses 30-50 mg of mercury and requires special handling. Also, using metal halide means 8-10 times more hazardous waste to deal with because of more bulbs to replace versus induction. And it is not in a solid amalgam form. Let's see......that could be up to 450mgs more mercury using metal halide over the life of an induction bulb. (By the way, mercury from one broken 48" fluorescent bulb can make 6,000 gallons of water (mercury) toxic and undrinkable!)
Induction is clearly a better choice. Please see our product list and call/email us for pricing. Carolina Induction is a distributor of quality induction products and can retrofit most fixtures or install new fixtures as needed.