Fitment: 
>>Compatible with Chevrolet:

For 2014-18 Silverado 1500, 
For 2015-18 Silverado 2500 / 3500 HD , 
For 2015-18 Suburban, 
For 2015-18 Tahoe; 

For GMC: 2014-18 Sierra 1500, 
For 2015-18 Sierra 2500 / 3500 HD, 
For 2015-18 Yukon / Yukon XL

Bracket Specifications
>>【FUNCTION】Provides two additional mounting holes on your roof  for aftermarket 52" Curved light bars.
>>【MATERIAL】Made of Premium Solid Steel to achieve better durability and higher strength.
>>【PROCESS】Black powder coated：can further improve the overall corrosion resistance,  prolong the service life,  and maintain an attractive appearance in the next few years.
>>【PRECISION】Computer-aided design and laser-cut to ensure the perfect fit.
>>【INSTALLATION】Easy to install with common hand tools.（Little drilling is required）

LED Specifications

>>LED power: 300W (100pcs 3W high intensity LEDS) 
>>Working Voltage: DC 9-30V(fit 12V/24V vehicle)
>>Beam type: Spot beam &Flood Beam Combo
>>LED color temperature: 6000K
>>Lumen:27000LM
>>Working life: 30000 hours
>>Working temperature: -40-85 degree Celsius
>>Waterproof rate: IP67
>>Material: 6063 Aluminum Alloy Profile,High quality Led Chips,high transmission PC Lens 

Package Included:
>>1 Pair LED light Bar mounting brackets
>>1 Pair Gaskets

>>1pcs 300W Curved LED light bar

>> 1pcs  Wiring
>>Mounting Hardware