I'm a big fan of Philips Hue smart lights, so I was pleased to see a huge selection of bulbs and lamps in this week's Amazon Prime Day sale — until I looked at the actual discounts and realized almost every product has been much cheaper before. Thankfully, there's one exception: a four-pack of Philips Hue Essential bulbs, down to $44.97 (was $59.99).• Browse the full Amazon Prime Day saleThe Philips Hue Essential series launched as an affordable entry to the world of smart lighting, and these standard white and color bulbs are extremely impressive, even at full price. I pitted one against a full-price Philips Hue White & Color Ambiance bulb, and the only real difference was that the Essential bulb can't dim as low. In terms of brightness and color reproduction, the two are pretty much even.With this Prime Day deal, each Hue Essential bulb costs just over $11, which is incredible value for any smart light. Whether you're new to Hue or just looking for an affordable way to extend your existing setup, these are a steal.Today's best Philips Hue dealEssential Smart LED A19 Bulb, 4-Pack: was $59.99 now $44.97At just over $11 per bulb, these Philips Hue Essential smart lights are a steal for Prime Day. They're almost as good as premium Philips Hue light bulbs, but for a fraction of the price, and I highly recommend them.View DealHue Essential A60 Smart LED Bulb, E27, 4 Pack: was £49.99 now £41.99This is only a modest discount, but still great value, knocking these excellent bulbs down to under £11 each. Amazon cheekily bumped the price up to £64 last week, but don't be fooled by that; they're usually closer to £45.View DealMore Prime Day deals in the USAmazon Devices: Fire Sticks & Echo from $18Amazon Haul: viral gadgets, tech & appliances from $1.36Apple: MacBooks, AirPods & AirTags from $28Cheap TVs: smart TVs from $69.99Headphones: 50% off Beats, Bose & SamsungLaptops: Apple, HP & Dell from $199Mattresses: Sealy, Serta & more from $89Smartwatches: up to 36% off Garmin & AppleVacuums: Dyson, Shark & Bissell from $49More Prime Day deals in the UKAmazon Prime: get a 30-day free trialAmazon Devices: up to 67% off Fire, Ring & BlinkAmazon Haul: extra 15% off for Prime membersAppliances: up to 40% off Ninja & De'LonghiBeauty: up to 60% off Philips & Oral-BEssentials: cleaning & groceries from £2Fashion: up to 50% offGaming: record-low Nintendo Switch 2Headphones: up to 50% off Anker & SonyLaptops: up to £800 off Microsoft & AsusTablets: up to 50% off Fire tabletsTVs: from £129.99Vacuums: up to 50% off Shark & DysonWearables: Samsung & Oura from £31