22W GX24Q 4-Pin LED PL Lamp, a perfect choice to replace 42W CFLCompact Fluorescent Lamp NO BALLAST NEEDED. Removebypass the ballast in the fixtures before install the LED bulb. Otherwise, the bulb WILL NOT WORK or FLICKER. How to removebypass the ballast: 1. Normally, Ballast had a black and white wire on the input side (120V). It also had two red and two blue output wires. To bypass this ballast, please cut all 6 wires. 2. Then, You can connect the two red wires to the black wire. 3. Next, please connect the two blue wires to the white wire. 4. For multiple bulb fixtures, just repeat the above steps on the other ballasts. SPECIFICATIONS: Lamp Base: GX24QG24Q 4-Pin (0.59in15mm Base Depth) Power: 22 Watts Dimension: L 5.9in x W 1.8in x H 1.8in (150mmx46mmx46mm) LEDs: 140pcs Super Bright 2835 SMD LEDs Input Voltage: AC85-265V Lumen: 2200lm (42W CFL Replacement) Light Color: Daylight 6000K Beam Angle: 360 Degrees CRI≧80Ra APPLICATIONS: GX24Q 4-Pin LED PL Lamp use for vertically recessed surface-mounted downlights, recessed cans, tabledesk lamps, portables, pendant lamps, ceiling fixtures, wall washers and wall sconces. BOX INCLUDED: 2 x LED GX24QG24Q 4-Pin Base Light Bulb