Can you put 16W 2D bulb into a 28W fitting?

Well, friend, it's important to match the wattage of the bulb with the fitting to ensure safety and proper functionality. If you put a 16W bulb into a 28W fitting, it may not provide enough light or could potentially cause damage due to the mismatch in power. I'd recommend finding a bulb that matches the wattage of the fitting for the best results.