Philadelphia ? Bright lights, glaring error.

Cincinnati catcher Ryan Hanigan, right, looks on as Philadelphia’s Raul Ibanez, left, celebrates with teammate Chase Utley in the seventh inning. The Phillies took a 2-0 lead over the Reds with a 7-4 victory on Friday in Philadelphia.

Reds right fielder Jay Bruce missed a seventh-inning line drive after losing the ball in the lights, allowing two crucial runs to score, and the Philadelphia Phillies took advantage of Cincinnati’s shoddy fielding to earn a 7-4 victory Friday night for a 2-0 lead in the best-of-five NL division series.

After Roy Halladay threw the second no-hitter in postseason history in Philadelphia’s 4-0 victory Wednesday, the Reds were determined to show their resilience.

Brandon Phillips hit a leadoff homer on Roy Oswalt’s fourth pitch, and the Reds built a 4-0 lead before their defense and bullpen unraveled.

“I feel like I let my team down,” Bruce said. “It was in the lights the whole time. I tried to stick with it. It was a pretty helpless feeling.”

The Phillies rallied against hard-throwing rookie Aroldis Chapman and his triple-digit fastball after soft-tossing starter Bronson Arroyo kept Philadelphia’s hitters off balance.

The two-time defending NL champions can close out the series in Game 3 on Sunday night in Cincinnati. Cole Hamels, the 2008 World Series MVP, pitches for the Phillies. Johnny Cueto is on the mound for the Reds.

Leading 4-3, the Reds turned to Chapman to protect the slim margin in the seventh. The 22-year-old Cuban came in firing, but he hit Chase Utley with a 101 mph fastball leading off. It wasn’t clear whether the ball grazed Utley’s right forearm, but he didn’t seem shaken.

“I’m not sure,” Utley said when asked if the ball hit him. “At first, I thought it was going to hit me in the head. He throws fast. I felt like it hit me, so I put my head down and ran to first.”

Chapman saw it differently.

“No, I don’t think at any time the ball hit him,” he said through a translator.

After Ryan Howard struck out, Jayson Werth hit a bouncer to third baseman Scott Rolen. Utley beat the throw to second on a close call. Phillips threw his arms up, and Reds manager Dusty Baker came out to argue briefly.

Jimmy Rollins then hit a liner to right that Bruce turned into a two-base error. The lights were the culprit, he said, not the sea of white-and-red “Fightin’ Phils” rally towels.

The ball rolled past Bruce, and Utley scored the tying run. Werth scored without a play when Phillips dropped the relay throw for another error, giving the Phillies a 5-4 lead.

“It’s embarrassing,” Bruce said. “I take great pride in my defense, but there was nothing I can do about it.”

Raul Ibanez followed with a single, and Carlos Ruiz hit an RBI grounder for a 6-4 lead.

Werth hit an RBI single off Nick Masset in the eighth to cap the scoring.

Jose Contreras tossed a perfect seventh to earn the win. Ryan Madson worked the eighth, and Brad Lidge pitched around a leadoff walk in the ninth for the save. Third baseman Placido Polanco made a diving, backhanded stab on Chris Heisey’s hard grounder and threw to first to end it.

The Reds finished second in the NL with a club-record .988 fielding percentage, but four errors led to five unearned runs. Their relievers hit three batters, who all ended up scoring. Philadelphia had eight hits, all singles.

“That was an uncommon night for us,” Baker said. “I don’t think it’s pressure as much as it is inexperience.”

Before they fell apart, the Reds made this Roy look ordinary.

Oswalt allowed four runs — three earned — and five hits in five innings. Oswalt used to dominate the Reds, but lost to them twice this season. He won his first 15 decisions against Cincinnati and was 23-1 coming into the year.

“I knew that as long as we didn’t get blown out, we have a chance,” Oswalt said. “I was trying to throw a quality start. I knew I wasn’t going to go out there and throw a no-hitter.”

Phillips, who made the final out against Halladay, drove a hanging slider into the left-field seats to snap Cincinnati’s 30-inning scoreless drought against Philadelphia. The All-Star second baseman flipped his bat and sauntered around the bases, pumping his fist on the way to the dugout.

Arroyo allowed two unearned runs and four hits in 51?3 innings. He reached 90 mph on the radar gun just once, on his 38th pitch.