LED lighting is becoming much more prevalent in today’s energy environment. Where LED is particularly ideal is in the Heavy Industry environments and applications because of the capital cost associated in their operation, and the need for mission/operational safety. Endurance, Performance, and Durability, at a reasonable cost is exponentially more valuable within the Heavy Industry segments.

So how do you tell what LED fixture is the best for your application?

These are some things to look out for and to ask when evaluating LED systems:

IES files. Ask for an IES file. Without an independent photometric laboratory test providing validated proof of the fixtures lumen output, many manufacturers make claims to their lumen output that are quite frankly, scientifically impossible. The nice colourful photo of light spectrum pictures on many manufacturers marketing materials only give a 2 dimensional visual of the fixtures capability. An IES file allows the customer to manipulate the data based on real-world scenarios giving them a 3 dimensional illustration of the fixtures overall capability. Consider a 1000W HPS fixture on a P&H Shovel, 20 feet from the ground – the illumination characteristics change by virtue of the placement of the light on the equipment. An IES file will give you that.

Lifetime warranties. With any Heavy Industry customer we’ve ever asked no one has been aware of a piece of equipment that has lasted a ‘lifetime’. A practical warranty from a reputable manufacturer is more durable than a lifetime warranty from an unproven source. Ask what a ‘lifetime’ warranty really means. We offer a solid 36 month warranty with a further 24 month replacement service on all fixtures. Please see our warranty page.

Typically, the rated hours of performance (50,000 hours for example) are based on an L70 standard. Simply stated the L70 defines when the fixtures lumen would depreciate to 70% of its initial validated lumen output. Fixtures that are driven hot will lose their lumen performance more quickly than those that aren’t. Too hot is bad!

LM-80 (IESNA test data) addresses the performance of the diode, but it helps the consumer understand whether the claims of the manufacturer are in line with the performance data of the diodes they are using in their design.

http://cool.conservation-us.org/byorg/us-doe/luminaire_reliability.pdf

BUYER BEWARE!
These are all things we’ve heard while working with our heavy industry customers.

“Their brochure claims lumen output in excess of what’s deemed possible by the LED manufacturer.”

“We’re trying some LED lights from a local motorcycle shop.”

“The brackets keep failing. No matter how much we tighten them, the light just ends up pointing straight down.”

“They told us the light would last for five years. It didn’t last 3 months.”

“They claim to be waterproof, but we’ve already been drowning them in the wash.”

“The glass has been cracking because of heat buildup inside.”

“The light output is only half of PTLX.”

“It puts out half the light it did 6 months ago.”

and in one case when visiting a prospective customer,“you’re welcome to come in, but don’t trip over the pile of other LED lights we’ve tried”