All products on the DLC qualified list are now classified as either DLC PREMIUM or DLC Standard. This classification was done by DLC in response to demand by Utility Companies for a clearer distinction between LED products so that the BEST products can be chosen for the right application.
The two performance metrics for DLC are LUMENS PER WATT and LED LIFESPAN. For the DLC PREMIUM a more stringent efficiency and a lifetime target must be met in order to be approved as a DLC PREMIUM fixture. While the lumens per watt requirement changes based on whatever category the product is placed, the product lifespan requirement always remains the same.
In order for a product to be DLC PREMIUM listed it MUST not only pass the L70 lifetime requirements for its category BUT it must also pass the L90 testing. The L90 test standard states a products light output must not drop lower than 90% of its initial lumens in the first 36,000 hours of operation. The lifetime calculation is done using the TM-21 calculator. This calculator assumes that all LED chips depreciate on an extrapolated curve based depreciation in output over time from the LM-80 data from the LED chip manufacturer.
Does BJ Take’s products comply with DLC Premium?
While most of the products released by BJ Take since 2016 meet the lumens per watt specifications for DLC PREMIUM testing, not all of them meet the L90 lifetime specifications due to the different LED chip types on different output models.
NOTE: NOT all Utility Companies have DLC Premium specific rebates. Please call your Hydro representative for more details in your region.