There are deal there to be got, if you know exactly what you want and can be arsed checking each day
ie
i have a house full of Philips Hue lights, the ambient colour starter pack consists of 3 x E27 bulbs plus the WiFi bridge usually retails about £160
on the first day of Amazons sale it was down to £70 that’s a massive saving , even better for me was that I can buy it and as I already have the WiFi bridge ( one bridge can control 50 bulbs ) I can sell the WiFi bridge on EBay for £35
meaning I’ve only paid £35 for 3 full colour E27 bulbs when they are usually 45/50 each per bulb
so there are def deals out there , just need to do a bit of homework if you are after something specific