14,000K Ushio 400W

Item Code: UN01608

* 14,000K Color Temperature
* Made in Germany
* Mogul Base.
* Crisp Blue/White Color.
* Approx. length from end-to-end: 10 1/2"

FAQ:
Q. What are the ANSI codes for Probe Start and Pulse Start ballasts?
A. Probe Start ANSI Codes for Metal Halide lamps: M102=150W, M57=175W, M58=250W, M59=400W, M47=1,000W.
Pulse Start ANSI Codes for Metal Halide lamps: M85=70W HQI, M81=150W HQI, M137=175W, M138=250W, M135=400W.


Q. What is the deal with "pulse start" or "probe start" ballasts?
A. "Probe start" ballasts are more common in the U.S., while "pulse start" ballasts are more common overseas. Most aquarium lighting hoods and pendants sold here in the US have PROBE start ballasts, as most MH lamps sold here are made for those ballasts. However, the short list of PULSE start style lamps commonly sold in the aquarium trade would be: 175W and 400W Ushio 10,000K, and both 250W and 400W Radium 20,000Ks. Those lamps will generally operate fine on pulse start ballasts, and we see little to no problems. We sell both pulse and probe start ballasts so you can get the correct one for your lighting needs.