| Callsign: | WELU |
| Branding: | CTNi Puerto Rico |
| Digital: | 22 (UHF) (shared with WSJN-CD) |
| Virtual: | 34 |
| Affiliations: | 34.1: CTNi (2014-present) |
| Founded: | October 14, 1983 |
| Airdate: | August 15, 1986 |
| Location: | Toa Baja, Puerto Rico |
| Former Callsigns: | WKKU (1983-1986, CP only) |
| Former Channel Numbers: | Analog: 32 (UHF, 1986-2009) Digital: 34 (UHF, 2009-2018) 20 (UHF, until 2018) Virtual: 32 (PSIP, 2009-2018) |
| Owner: | Senda Educational Broadcasting |
| Operator: | Christian Television Network, Inc. |
| Licensee: | Senda Educational Broadcasting, Inc. |
| Sister Stations: | WSJN-CD WQSJ-CD WVQS-LD WUSP-LD |
| Former Affiliations: | Religious Independent (1986-2014) |
| Erp: | 1.0 kW |
| Haat: | 530m (1,740feet) |
| Facility Id: | 26602 |
| Coordinates: | 18.1497°N -66.9894°W |
| Licensing Authority: | FCC |
| Website: | www.sbnnetwork.org www.ctni.org |
WELU (channel 34), branded on-air as CTNi Puerto Rico, is a CTN-affiliated television station licensed to Toa Baja, Puerto Rico. The station is owned by Senda Educational Broadcasting. The station shares transmitter facilities with WSJN-CD (channel 20) at the Monte Renovados La Peña in Bayamon.
The station's digital signal is multiplexed:
On June 12, 2009, WELU signed off analog broadcast and reverting to digital channel.
On August 14, 2017, it was revealed that WELU's over-the-air spectrum had been sold in the FCC's spectrum reallocation auction, fetching $375,347. WELU will not sign off, but it will later share broadcast spectrum with WSJN-CD that also covers the entire metropolitan area. Also will change their city of license from Aguadilla to Toa Baja.