Some of the controllable fixtures had timer issues (3 out of 50), which have since been fixed. We have those 3 units still, and will be installing BRAND NEW controllers in 2 weeks, when they arrive. We though that now would be the best time to offer the three controllable units for 20% off the original price, or $250 shipped. PM me to order, I can send an invoice to your PayPal email. Click HERE for more details on these units.