Hi, I just purchased this for £34.30 instead of £59.99.
Firstly search for the Ocado Groupon offer & purchase a £60 Ocado voucher for £44 but on Groupn add voucher code WELCOME & save another £10 (new customers only) that will give you £60 for £34.
Once on Ocado add the Phillips Hue Starter Kit and a 35p Sherbet, then go to checkout and add your voucher code, you will then only pay Ocado 30p
So you'll get the kit for £34.30 (£34 for Groupon code & 30p to Ocado)
Please note that the earliest delivery date seems to be in 2 weeks, it may be quicker for you depends on where you live.
EDIT: Get £6.30 from TopCashback so it would now make it £28.00