![Ushio HiLUX GRO CMH Lamp, 315W, 4200K [Minimum Order Quantity 12] SPECIAL ORDER US5002537](https://i0.wp.com/www.horticulturesource.com/fresh/wp-content/uploads/2019/07/US5002537_1.jpg?fit=96%2C80&ssl=1 "Ushio HiLUX GRO CMH Lamp, 315W, 4200K [Minimum Order Quantity 12] SPECIAL ORDER US5002537")
Description
Superior color quality. Crisp white light. 4200K color temperature, High 92 CRI, 34,300 initial lumens (109 lm/W). High 90% lumen maintenance at 8,000 hr./High 85% PPF maintenance at 20,000 hrs. Unique open rated lamp construction reduces radiant heat from the arc tube and is suitable for open fixture use.
Important:
Until the lamp has achieved a least 10 hours of operation, the lamp should never be turned off sooner than 2 minutes, including during the installation test. In case that this has happened, you will have to wait 1 hour before switching on again. Failure to comply with this requirement may lead to ignition problems.
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