That's the price we pay for growing under lights. I use a small hose attached to my watering can. It's more time consuming but so is moving the lights.

They have a hanging chain, or string that they sell at Worms Way that you can use in place of what your using. It's a retrackable cord. You just pull down and push up so easy...Look into it. I use them, and what a neat thing to use...

Thanks. Will check out the hose and Worms Way.