New model has 3 levels of dimming built in. Based on the 24watt version, the dimming is controled by cycling power (on/off) for less than 2 seconds. Each power cycle reduces the light output, goes back to full power after the last power cycle. Use full power when needed Dim the lights so retinas are saved Cost (shipped in conus) Pair spot - $100 Pair spot/flood - $115 Pair Flood Beam - $125 Pair 3 mode 24 watt flood - $160 Payments via paypal, please contact me for stock status prior to payment. Previous purchasers, thanks for your business, contact me for a deal on the new light model.