Cooling a 150w hps

Hello
I have a box measurements around 1x1x3 but when i run my 150w hps the temps go above 120+ easily so i bought a 6inch clip on fan (aimed it at the light) and bought a bathroom extractor fan 100mm (85m3) and temps now in low 100's what can i do
Thanks

Hey dude, I've had this work a treat. If the light is hanging from two points raise one end then suspend your fan at the lower end of your light. Have it blow upwards and directly on the bulb.
Get an inline fan and get it sucking cold air into the bottom of your grow box, get the ducting as close to a window as possible and put some tight material or similar over the ducting to stop bugs getting in your box.

why is your grow space so tiny? you need better ventilation

How big is your intake vent and how big is your exhaust vent holes? What is the ambient temp the box is in and where is the hot air getting extracted to?

1x1x3? 150HPS? You need a larger area to put that 150.