KLUU (103.5 FM) is a radio station licensed to Wahiawa, Hawaii, and serving the Honolulu metropolitan area. It broadcasts a contemporary Christian radio format.^[2] It is owned by the Educational Media Foundation and carries the K-Love Network.^[3]

KLUU has an effective radiated power (ERP) of 100,000 watts (horizontal polarization) and 86,490 watts (vertical polarization).^ It may be operating on an auxiliary power of 85,000 watts ERP.^[4] The transmitter is off Palehua Road, amid the towers for other Honolulu-area FM and TV stations.^[5] It also operates FM translator stations on 104.7 in Haleiwa and 105.5 in Honolulu.

Under Kona Coast Radio,^[6] KLUU applied for a construction permit as KKHI in February 2005^[7] (superseded by a September transaction that same year), and became a variety station owned by Vic Michael of Kona Coast which officially signed on in 2007.^[6]

In October 2005, the call sign changed from KKHI to KHAI.^[8] In March 2007, Kona Coast sold KHAI to the Educational Media Foundation, which began running its Air1 service,^[9] which eventually was switched over to K-love.^{[upper-alpha 1]} KHAI obtained the present KLUU callsign from K-love's Jamestown, North Dakota affiliate KJKL in 2015.

KLUU broadcasts using HD Radio technology.

• On its HD2 digital subchannel, it carries Air 1, a sister station to K-love, relayed on an FM translator on 105.5 MHz.^[10]
• On the HD3 subchannel, KLUU runs K-Love Classics, a Christian music network that covers the 1980s through the early 2000s.^[11]

KLUU programming is also carried on a broadcast translator station to extend or improve the coverage area of the station.