Sears offers the Intex Multi Color LED Pool Light Sprayer, model no. 28089E, for $14.99. Opt for in-store pickup to avoid the $8.25 shipping charge. (Amazon has it for the same with free shipping for Prime members.) That's tied with our mention from a week ago and the lowest price we could find now by $10. It illuminates in four colors, features a built-in hydroelectric generator, and requires a pump flow rate of 1,000 to 3,000 gallons per hour.
Of note, Shop Your Way Rewards members will earn a Sears credit with this purchase and may be eligible for additional credits and discounts.