Summer Sale How about the temps in your area? have your considered update your HPS to reduce some heat for your plants? And have noticed that the price of Mars Pro II series lights are reduced in UK, EU, AU, and CA? Now, we have summer sales. When your order over $500, you can save $10, over $1000, you can save $20, over 2000, you can save $30. Besides, you can use the discount code "marshydro" to get extra off. Only this month, only website!