I bought the Icecap pendant 250/400 HQI and it does not fit my 250 HQi bulbs this is set up for a 400 I will need to retro into a 250 to fit bulb if I would have known this I would have never bought this pendant I payed Marine depot to sell me a plug and play system did not want to do my own drilling and measuring. How do I use this pendant wiyh 250 hqi bulbs. order #W000291301 Please urgent. Thanks