Precision PAR™ for FluxScale Series Fixtures

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Frequently Asked Questions

How does Precision PAR™ affect total light output?

Implementing Precision PAR™ will reduce the nameplate PAR output of fixtures by a small amount over the lifespan of the product. In most applications, this reduction ranges from 5-8%. GrowFlux engineers work with customers to develop lighting plans that ensure their PAR needs are met for any Precision PAR™ implementation.

What is the Calibration Period?

The calibration period is the timespan, typically 5-10 years, throughout which Precision PAR™ is configured to deliver consistent PAR levels. When GrowFlux sets up a Precision PAR™ zone of fixtures, we work with customers to select the best calibration period for their needs. In most cases, we recommend a calibration period of 6-8 years to maximize output and return on investment. Calibration periods up to 10 years are available; selecting a longer calibration period will result in a slightly larger reduction in nameplate PAR output.

What happens at the end of the Precision PAR™ calibration period?

At the end of the calibration period, GrowFlux fixtures will slowly decline in output over time like any other LED fixture, however unlike other LED fixtures on the market, GrowFlux LED products are designed to decline in output by no more than 20% over 60,000 hours of use. 

What happens if I discontinue the Precision PAR™ service?

Discontinuing the Precision PAR™ service will return your GrowFlux fixtures to an un-calibrated state, which means their output will steadily decline over time like other LED based products. 

What are the alternatives to Precision PAR™

Since horticulture LED products can last upwards of 10 years, some growers proactively implement dimming plans in their facilities and update these dimming levels from time to time. This technique is inaccurate, since different LEDs degrade at different rates, and very few LEDs degrade in a linear fashion. This technique also requires some amount of assumptions and guesswork, as well as many time consuming measurements with PAR meters.

Conventional lighting technologies such as HPS and metal halide lights are typically re-lamped well before the bulb expires to result in approximately consistent PAR levels. This comes at a high cost as some fixtures can cost as much as $80-100 per year to maintain. 

Universal dimming schemes are commonly used in the lighting industry to achieve approximately consistent light levels, however these schemes are not suited for tunable horticultural lighting since each type of LED degrades at a different rate. Further, only Precision PAR™ technology calibrates each unique fixture in the field, taking into account the operating conditions and actual usage each fixture sees throughout the calibration period.

How much does Precision PAR™ cost?

Precision PAR™ pricing is based on the calibration period and number of fixtures, however in all cases, the annual per-fixture cost of Precision PAR™ is far lower than the cost of a conventional HPS bulb.