An amazing HMI film light, uses only 250w and outputs more than 1000w tungsten. Built like a tank, has a ballast built into ligt unit. Has a great fresnel construction where you can alter the beam size, which you can further cut with barn doors. 

3 units for sale, one has 5500K bulb in it and fits standart GY9.5 bulbs. Other two has GZY9.5 socket, and has 3200K bulbs. GZY9.5 socket can be easily modified to GY9.5 with a pliers, as it is done on one of the units. 

Bulbs can be easily aquired really cheap on eBay or aliexpress.